r/TopCharacterTropes • u/osamu_inday • Sep 07 '26
building/location. (Personal Favorite Trope) Technology left by an extinct civilization
Bonus if it's in space and it's a instantaneous transportation portal / wormhole.
Apertures ( Love, Death, & Robots S01E07 - Beyond The Aquila Rift) - A network of portals left behind by a civilization long gone. The program on which they operate on isn't fully deciphered, making traversal through them prone to error.
Mass relays (Mass effect) - Known to be an ancient portal left behind by the previous most prominent civilization that is now extinct, mass relays are primarily used by members of the Galactic council, making it easy to travel from one allied system to another.
Protomolecules / Ring Gates (The Expanse) - A sort parasitic technology left behind by a now extinct civilization, eventually it was revealed that protomolecules "studies" its host, and eventually builds a ring gate by expanding from the infected host. Entry through the ring gates will also lead to the "ring network", a central portal through which you can travel to the other ring gates.
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u/junehalvern8 Sep 07 '26
https://giphy.com/gifs/2CWIaWhMrphDy
Half of Halo is basically humanity stumbling into insanely advanced Forerunner technology whose creators have been gone for a hundred thousand years
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u/-Thats_Rough_Buddy- Sep 07 '26
"When you first saw Halo, were you blinded by it's majesty?"
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u/Galexio Sep 07 '26
Blinded?
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u/RockAndGem1101 Sep 07 '26
Paralyzed? Dumbstruck?
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u/No_Writing_5896 Sep 07 '26
No
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u/space_coyote_86 Sep 07 '26
Yet the humans were able to evade your ships, land on the sacred ring and desecrate it with their filthy footsteps!
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u/HortenseYeti411 Sep 07 '26
Noble hierarchs surely you understand that once the parasite attacked-
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u/Gold-Cry-7520 Sep 07 '26
booooo you stink
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u/Pilot_Solaris Sep 07 '26
There will be ORDER in this council!
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u/TactualTransAm Sep 07 '26
You were right to focus your efforts on the feet - uhh the flood! The flood
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u/osamu_inday Sep 07 '26
is there any way to get into halo without having to play the games?
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u/Gilgamesh107 Sep 07 '26
You got audible?
The first 3 halo books by Eric nylund set the foundation or halos lore so you could listen to those if you want to get into it without the games.
There is also halo forward unto dawn which is a short web show
Halo legends is an anime anthology
There are also a few official motion comics on YouTube.
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u/_thirdeyeopener_ Sep 07 '26
Wasn't sure what to listen to next on Audible, now I am. Thanks!
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u/Akai1up Sep 07 '26
All great recommendations, but to add on - whatever you do, don't watch the live action show.
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u/CHead2000 Sep 07 '26
I had trouble getting into the audiobook for Fall of Reach. Pronouncing "Mjolnir" as "muh-jol-nur" and 117 as "one-seventeen" was grating to my ears
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u/ArtooFeva Sep 07 '26
You can sort of treat it like a book series. There isn’t really a single bad book in the entire series. Not every one is spectacular, but the quality of the entire series is actually kind of scary. Where in a series like Star Wars or Star Trek you get books where stories don’t make sense or the characters are wildly written everything is crazy consistent in the Halo books so it’s almost worth just reading the entire thing even if you don’t want to play the games.
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u/baddogg30 Sep 07 '26
Theres also about a gazillion more Star Wars and Star Trek books printed so I think it's best to disclaim that while Halo books are still very consistent you'll still find a ratio with some "bad" books in the collection
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u/ArtooFeva Sep 07 '26
For sure, though I’d say the average peaks way higher granted because there’s a smaller volume of content to choose from. As a fan I just think it’s marvelous to not have to worry about quality and consistency in a series.
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u/sirhcx Sep 07 '26
No commentary playthrough of all the mainline games.
Fall of Reach is getting a new immersive audiobook that comes out in November and nearly every other book is also on Audible.
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u/Kitchen_Loan3649 Sep 07 '26
Read the books as thats where most of the major lore explanation is. Fall of Reach and The Flood are good places to start.
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u/IWAlcatraz Sep 07 '26
I finished listening to every Halo novel available on audible last year and I definitely recommend them all. They all give you pretty much everything you need to know about the story and they're all written insanely well. They're actually re-recording the first 3 novels with narration from the game voice actors and some lore corrections soon, keep an eye out for Halo: The Master Chief Omnibus which releases on Nov 10th
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u/Left_Maize816 Sep 07 '26
The other half is the aliens that made a religion around the same highly advanced technology left by a deceased civilization.
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Sep 07 '26
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u/Lupus_Borealis Sep 07 '26
ah yes, "reapers." we have dismissed that claim.
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u/osamu_inday Sep 07 '26
kek I kinda knew. You were supposed to kind of believe they were made by the previous race that were harvested though haha.
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u/insufficience Sep 07 '26
the previous race, which also wasn’t actually (fully) extinct
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u/StoneGoldX Sep 07 '26
Functionally extinct. They weren't making any more proteins. It can count, by the definition.
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u/Wranorel Sep 07 '26
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u/utterlyuncool Sep 07 '26
For a 19 year old game? My rule if thumb is "if it can legally vote, drive and drink (in EU), you can't really spoil it"
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u/HardCorey23 Sep 07 '26
Foundation - book and show, old technology from when the Empire was at its peak. The Foundation is able to repair old starships.
Gateway - just the book, the humans take potentially suicidal trips to uncover old Heechee technology.
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u/osamu_inday Sep 07 '26
shit, I knew I was forgetting something. Although you could argue that that the show's old starships aren't really from an extinct civilization but are empire's tech.
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u/HardCorey23 Sep 07 '26
Yeah, you're right. The Foundation is less there for like ancient alien tech but I guess there are also old advanced robotics uncovered from former human civilizations.
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u/Mamboo07 Sep 07 '26
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u/ImAHobo107 Sep 07 '26
I fucking love how this fucking reveal is just fucking Halo on a diet. The thing is called the Ark. Its a megastructure that kills, the AI system that rebelled is essentially Mendicant Bias.
It's the best worst movie I've seen. My god we need more.
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u/Eclipsehedgie2010 Sep 07 '26
God damn it.
I was gonna just send a picture of the moon with 0 context.
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u/Nervous_Chipmunk7002 Sep 07 '26
Focus (and everything it allows you to see)- Horizon.
Aloy found the focus, a piece of technology left by the "ancients" (the realworld humans in the present day's future). This allowed her to read ancient texts and discover how the old world ended and why she is the only person capable of saving the new world

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u/jedisalamander Sep 07 '26
Also all of the Faro machines. Technically the Cauldron machines don't count since they were created by a creation of the old ones, but they had no input in the design
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u/TheRealNekora Sep 07 '26
it becomes even funnier when you realise that the Focus, regardless how cool it is in game. lorewise its just the equivalent of a smartphone or tablet.
personaly i will never be able to unsee this
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u/Conquiescamus Sep 07 '26
smartglasses
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u/Sad-Development-4153 Sep 07 '26
As bad as Ted Faro is he wasn't as weird and creepy as Zuckerberg so his version of meta succeeded.
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u/Alkakd0nfsg9g Sep 07 '26
Well evil genius billionaires in fiction unlike in real world tend to be real geniuses
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u/Pijany_Matematyk767 Sep 07 '26
Just like real life billionaires, Ted Faro was also mostly just riding on the skill and talent of the people he employed (such as dr. Elisabet Sobeck) rather than any brilliance of his own
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u/Chaosmusic Sep 07 '26
Contact (at least the film version). The species she meets have been around for billions of years but even they didn't build the wormhole transit system. They found it from an even older species that either died out or went somewhere else.
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u/Like_a_stone4815 Sep 07 '26
This might be one of the oldest and most advanced examples possible. Billions of years old and a transit system of wormholes. Insane.
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u/FortifiedPuddle Sep 07 '26
Once one group builds a galaxy wide transit system no one else is building a different one. It’s a one off idea, once it exists that’s the one.
Like Heinz ketchup.
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u/Kratosbeatsbatman Sep 07 '26
Stargate sg1. Literally everything in it
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u/osamu_inday Sep 07 '26
i really should get into stargate. would you recommend it?
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u/EPZO Sep 07 '26
Always recommend SG-1. Tho, you should watch the movie first.
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u/ryncewynde88 Sep 07 '26
It has MacGuyver, Kratos, and Jason Momoa As A Badass Warrior Dude In An Ancient Underwater City Called Atlantis (weird that’s happened twice). Also some other dudes, but eh.
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u/Mysterious_Yellow805 Sep 07 '26
Movie then sg-1 then atlantis at s8 of sg1
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u/ArterialRed Sep 07 '26
Keeping in mind that the movie is the weakest part of the entire set.
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u/TheDotCaptin Sep 07 '26
It's good. The first movie give the setup. Then the series pick up with new actors and went to the episodic format like Star Trek. There are some nice sci-fi tropes mixed in every so often. Nice to explore the world building. It take till the mid season to fully establish what the show is, when it gets into it's flow.
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u/ZeroBrutus Sep 07 '26
Massive sci-fi geek - its my second favourite show of all time.
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u/CarvedTheRoastBeast Sep 07 '26
100%
Watch the movie first like u/EPZO said. It’s a really good balance between serial and episodic for the first 5 seasons. After that the scope kind of narrows, but the show is still solid. You’ll want to watch at least the first 2 seasons of Stargate Atlantis too, but if you get hooked on the show you won’t need anyone to tell you that!
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u/_whatever_wherever Sep 07 '26 edited Sep 07 '26
You can find these scattered throughout the galaxy in Stellaris, ranging from the minor (the hulls of old vessels, ancient mining probes, etc.) to titanic feats of galactic engineering like Gateways connecting up the galaxy, Dyson Sphere's, and Matter Decompressors around black holes
You can even collect minor artifacts from extinct civilisations to search for scientific breakthroughs among them
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u/TalmondtheLost Sep 07 '26
Though there is one case where the creators aren't extinct.
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u/Bitter-Marsupial Sep 07 '26
Well you can always make any technology's creator extinct then harvest it
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u/MyOtherCarIsEpona Sep 07 '26 edited Sep 07 '26
Outer Wilds.
You are simultaneously one of the first astronauts among your species and the first archaeologist who can translate the writings of the ancient people who left their scientific findings on your planet and the other planets in your solar system before your people evolved sentience.
There is a massive mystery that is introduced to you early in the game and you have to dig through the records of the people who left things behind to find out what happened to them and what is happening to you.
It's maybe my favorite video game of all time.
If you have seen the recent film, Project Hail Mary, then Outer Wilds might scratch that same itch.
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u/kai_vt Sep 07 '26
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u/facial-nose Sep 07 '26
Minecraft has a lore?
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u/TadeMike Sep 07 '26
Barely, most of it is speculation with the only evidence being the abandonen structures
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u/Diamond_Helmet59 Sep 07 '26
Yeah, in Minecraft itself it's mainly scattered and up to the player to find and decide. Some of the other games are canon to the main "story" and are more lore-focused though.
Basically there IS lore, but it is deliberately vague and scattered in some aspects with the intent that the player can make their own story and conclusions.
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u/HueyLongoftheGiants Sep 07 '26
One could say, for an IRL example, that the many highways and roads of the Roman Empire could count as such, since medieval peoples utilized these systems, and they're still used to some extent today.
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u/HandsomePaddyRedux Sep 07 '26
There aren’t really any known, factual extinct civilizations on Earth. The ancient Romans continue to exist as a subset of modern Italians, Ancient Aztec and Mayan civilizations have descendants in modern Central and South America, and Celts, Norse, Egyptian, etc all have modern descendants. If Altlantis/Lemuria/whatever were factual then they could apply, but we would also need surviving technology from them.
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u/pyrhus626 Sep 07 '26
Yeah, and even with the Romans it wasn’t like their empire just vanished overnight. Many institutions were coopted or copied by the various Germanic groups that took over ruler ship in Western Europe. It wasn’t like they displaced the populace or structure living there, but the parts of those tribes that took over became the new ruling class. Life for those under them only gradually changed. Duke and count existed as medieval titles of nobility because they were Roman military positions that the Germanic ruling class took over, which morphed into hereditary titles.
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u/Emperor_Cat_IV Sep 07 '26
That plus half the other half of the empire didn't collapse and lasted another millennia. The Byzantines were a continuation of the Roman Empire's institutions.
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u/HueyLongoftheGiants Sep 07 '26
Actually a solid point. I was probably thinking more "politically defunct" rather than "literally extinct," in that case.
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u/Embarrassed-Yard-583 Sep 07 '26
Similarly, the European colonization of the Americas was made a lot easier because native tribes had worked the land for thousands of years. Their work while more easily considered “natural” by the colonizers directly made the continents easier to live on. Resulting in a lot of myths about lost tribes of jews and secret white people who’d left behind a garden of Eden.
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u/frostmourne16 Sep 07 '26
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u/osamu_inday Sep 07 '26
sorry my guy I didn't grow up with an xbox so I never got the chance to play halo until i was an adult and by then im no longer that into games :D
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u/frostmourne16 Sep 07 '26
That's understandable, OP. Always been more of a PC guy myself, never really did have the money for consoles.
I did have the good fortune to play Halo CE and Halo 2 on PC growing up, for what it's worth. Can't exactly blame you for not being into it anymore either, times change and so do we.
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u/yrqrm0 Sep 07 '26
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u/MysteriousTBird Sep 07 '26
This is very early spoiler, but you find out the author of books has the ability to make fiction a living world.
Finding out the mystery of the abandonment requires a love for strange puzzles or following a game guide.
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u/Paradoxmoose Sep 07 '26
I played this as a kid, never solved a single puzzle, but it was neat. Then when I visited my cousins, they were excited to show me the ending (I think it was a cinematic?) - without much context, it felt deep but I don't remember a lick of it.
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u/DriverObvious5841 Sep 07 '26
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u/AncientCarry4346 Sep 07 '26
Pretty much all tech the Imperium is using in 40k is from the DAOT and 99% of the time they're either using it wrong or for the wrong purpose.
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u/Dr_Mibbs_Md Sep 07 '26
The Star Forge in Star Wars: Knights of the Old Republic. Built over 20,000 years before the game takes place, by a race that once ruled most of the known galaxy. It was a giant factory that used raw materials from a star, mixed with some space magic, to create a near endless supply of warships to control the galaxy. By the time of the main game, its creators have been completely forgotten about and now only survive on a single planet in the middle of nowhere.

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u/phenomenalphalanx Sep 07 '26
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u/suryman Sep 07 '26
I was thinking about Alteres Carbon too ! The technology and astral maps left by the martians is what allowed the human race to expand as it did
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u/fallenangel41 Sep 07 '26
At the Mountains of Madness- HPL
A trip to Antarctica leads to the main characters discovering an alien city and the existence of a race that inhabited Earth billions of years before us.
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u/amalgamas Sep 07 '26
The Jardaan (Mass Effect: Andromeda) - A gone or extinct species who's Remnant technologies litter the entire Heleus Cluster of the Andromeda Galaxy. Through gameplay you encounter a fairly staggering array of machines, terraforming tech, and the entire Angara species were created by them. From their Dyson Spheres, instantaneous methods of transport, and their ability to create an otherwise advanced species they rank among the Leviathans and Protheans from the mainline Mass Effect series in technological advancement.

As for what happened to them, we don't know, only that at some point before the Andromeda Initiative arrived in the Heleus Cluster an explosion happened on one of their research planets that caused an anomaly known as the Scourge to spread through the entire cluster which makes travel, even at light speed, extremely difficult if not outright deadly. The Meridian dyson sphere control center was cast adrift at this time and the Jardaan themselves either left the Cluster or were killed by their own creations, no one knows, but considering their advancement levels it's most likely the former.
Unfortunately, we'll never see the answer as the game was largely a flop and BioWare is a shell of its former self.
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u/Different_Fig_2958 Sep 07 '26
As someone who kind of enjoyed Andromeda for the gameplay, but forgot half the lore in it due to disillusionment with the codex being so... boring.
Thank you.
Hopefully, Andromeda will get it's due one day. It introduced a lot of fun stuff that was hampered by the lack of an overall vision for the storytelling and how it fit into the universe.
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u/VernBarty Sep 07 '26
The king of this trope is Forbidden Planet. They discover a planet that seems deserted and natural on the surface but discover that below the surface is a sprawling vast city. The underground city is so old that the surface also used to be city but its been so long that its all eroded back into nature.
Turns out the civilization that lived here became too advanced for their own good. They developed wifi that could connect right into their minds and machines that could generate anything that their mind could think of. One night the people of this world went to sleep but the machines their minds were connected to didnt. When the people slept their conscious mind was no longer assessible so the machines went deeper into the Id and began creating monsters. Overnight the civilization was overrun by Monsters from the Id and went extinct. Leaving their machines running and waiting in the dark.
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Sep 07 '26
[removed] — view removed comment
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u/pipnina Sep 07 '26
Also those ancient gateways that were a plot point in TNG and DS9. That let people just walk through and go to anywhere in the galaxy instantly.
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u/Beansforeveryday Sep 07 '26
Stellaris
There are numerous precursor civilizations by the time of the games start in 2200. The Cybrex, Yuht, Zroni and others
Each leaving behind artifacts. Although most stuff doesn’t show up on the in game. You just read about them in events. Upon recovering enough artifacts you can visit the precursors home system.
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u/Anufenrir Sep 07 '26

The Lamorn in Metroid Prime 4. You spend the game exploring their desolate homeworld and are given psionic messages from them asking you to help keep their memories alive in the form of a special tree.
Except they’re not exactly extinct, through the discovery of a special energy they accidentally mutated many of their kind into Grievers.
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u/Strong-Expression787 Sep 07 '26
The Webway portal from Warhammer 40K, yes the user and current owner is Eldar, but the original creator was the now extinct Old Ones, you could also argue that the Imperium of Man's technology is also ancient tech left by ancient humans, but the current human is still their descendant, plus Big E is technically still a human from the stone age era, so not EXTINCT extinct

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u/Reckless_Waifu Sep 07 '26 edited Sep 07 '26
Real life example: Roman concrete
Ancient Roman concrete was unusually durable, it was bit of a mystery why. In 2023 it was found out that a specific lime mixture makes the concrete self-heal.
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u/lesh17 Sep 07 '26
The Precursors of Star Control II left amazing technology including the player character’s capital ship as well as the enemy dreadnought (and the bomb needed to destroy it and win the game)
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u/bennieboi_ Sep 07 '26 edited Sep 07 '26

this is from a board game, but
Exertians (SETI) - advanced civilization that learned how to mine energy from the core of their planet. Right before they died, they sent out beacons that warns whoever discovered them to not do what they did.
In the game, the players would discover them offering high risk high reward missions that by the end of the game could either boost them to first place or cut 1/3 of their points I think (which is a thematic way of saying "you forgot the warning, stoopid.").
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u/RPGcraft Sep 07 '26 edited Sep 07 '26

Protomolecule in The Expanse (book and TV series)
Taken from the wiki,
The protomolecule is an infectious agent of extrasolar origin, first discovered on Phoebe by the Martian Congressional Republic in 0 XTE. It has the ability to radically alter infected life forms and utilize their biomass in various ways.
The whole story (the TV adapted portion at least) revolves around people trying to exploit it for their own gain and it going haywire. Interesting thing is that the protomolecule itself doesn't seem "evil" it looks like a technology that isn't understood. As a character in the story explains it, trying to use the protomolecule the way humans did in the series was like trying to use a microwave as a storage box.
Later, we also get a jumpgate like structure that allows teleportation like effects within a certain weight limit made by the protomolecule.
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u/osamu_inday Sep 07 '26
hahah this is in my post, it's actually my favorite and it was since seeing it in the expanse when I started recognizing the trope
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u/RPGcraft Sep 07 '26
Oh! Sorry, Didn't see that. The moment I saw the title, my brain automatically jumped to this :)
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u/osamu_inday Sep 07 '26
anyway, Afaik, it going haywire is caused by an extradimensional race that gets "hurt" every time the ring gates are used. The race are named "dark gods", and they are the creators of the void bullets that Holden and Miller's ghost used to shut down the protomolecules on Ilus. They are the ones responsible for the regular errors that happened every few times the ring gates are used, which the protagonists used to kill Marco Inaros in the final season.
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u/RPGcraft Sep 07 '26
Sounds really interesting. I finished the TV series but didn't get into the books. I should give the books a try.
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u/Reddivern Sep 07 '26
Be ready for some major changes to some of the characters. Obviously Alex is still alive since IRL, his actor was a creep and got himself wrote out of the story. , and it’s a 30 year time jump in the series.
There’s a few book characters not in the series that make an appearance but they have very little influence, and you kinda understand their role after a few chapters.
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u/phormix Sep 07 '26
Yeah the way I understood it is that our universes and the places in between kinda live... within them the same way colonies of bacteria live inside us. Once we start giving them indigestion they start with the antibiotics...
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u/GoldenSeam Sep 07 '26
The “I am a tomb” chapter from Deaths End. Had me engrossed and I wished the book spent more time there.
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u/KagekaNecavi Sep 07 '26
Murderbot Diaries has "alien remnants". In some books they're a pretty big part of the plot, in some books they aren't mentioned at all
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u/Karl__RockenStone Sep 07 '26
In Outer Wilds you are a member of the your species space program and while basically everything your people made is just made of wood and a bit of metal (including your space ship) there are remnants of an extinct civilization called the Nomai all around the solar system.
Do not read further if you want to play the game yourself, because it is a exploration puzzle game, that exclusively relies on you not knowing what to do and where to go (if you have finished the game once, after hours of figuring out what to do, you could do so again on a fresh save in about 20 minutes).
This includes large settlements and ruins on multiple planets, anti gravity elevators that were also used to excavate ore in mining sites, massive warp towers that teleport you between two locations, a large gravity cannon that is used to launch and recall shuttles, an orbital cannon that shoots a probe with so much energy that it destroys itself upon firing, a space station orbiting the sun with the with the intention to cause a super nova, a massive crashed ship that uses a warp drive to teleport to provided coordinates and lastly a device inside the hollowed out core of a planet, that sends memories back in time, essentially creating a time loop for everyone connected to it.
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u/GrassDry2065 Sep 07 '26
Gurren Lagann! Kind of, I think. The humans once were very strong and were squished back into their home planet. The deal was that the old leader would keep the count of humans on the surface low or else kaboom. Well, a rebellion starts and then a chain of stealing cool robots from the bad guys or discovering lost legacies. All those robots were from ancient humans or the 13th dimensional weenies.
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u/phormix Sep 07 '26
Would the Ringworld (Nivenverse) count? The Pak still do exist but generally not as the builders who made it, but often more of a de-evolved offshoot.
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u/Dependent_Key5423 Sep 07 '26
The whole "left behind by some dead race" thing always hits way harder than any current alien tech cause it comes with a built in mystery nobody can solve. Like the relays and the rings in the Expanse just sit there doing their thing without any instruction manual and you're just supposed to trust the thing that might eat you. It also makes you wonder what we're leaving behind for whatever comes after us which is some existential bullshit if you think about it too long. Honestly the space portal version is peak sci-fi and I'll never get tired of it.
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u/wondercaliban Sep 07 '26
Mass Effect - The race that invented the relays are very much not extinct
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u/osamu_inday Sep 07 '26
right, maybe i should've made that clear that the game used the whole "the extinct protheans left all these tech" as a red herring for the game's big surprise.
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u/wondercaliban Sep 07 '26
Its a good example of the Trope, as thats what they believe. Thats what makes it a good twist
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u/HandsomePaddyRedux Sep 07 '26
It still fits the trope since that is the established mainstream history at the time the first game takes place.
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u/go_faster1 Sep 07 '26
Iconian Portals (Star Trek) - since the TNG episode "Contagion", there have been appearances of these mysterious portals said to transport the people of the mysterious Iconian Empire anywhere they wished. Most of the original story to Star Trek Online deals with more Iconian Portals being discovered and realizing the Iconians aren't as dead as they once thought.
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u/amalgamas Sep 07 '26
This one is a two-fer.
The City and Killy's Graviton Beam Emitter (Blame!) - The City is, and I'm not joking, one of the single largest things in all of fiction with only the Xeelee Gate, the Visitor from Don't Look Outside, the Super Tengen Toppa Gurren Lagann, and maybe the Planet Factory from Hitchhikers Guide being bigger. The City was originally commissioned by the precursor humans thousands of years ago and robots with the ability to manifest construction material began building it. At some point the precursor humans all died with their descendants losing access to their technology and wouldn't you know it? No one told the robots to stop. So they just kept going. If you click that link above you'll see that The City is basically a Dyson Sphere matryoshka doll that extends from the sun all the way out to the goddamn Oort Cloud. At one point the main character of Blame! comes across an open area on a layer he's never been to before that is speculated to have the same surface area of the planet Jupiter. For reference, Jupiter is 23,713,907,537 square miles, or 6.1419x1010 square kilometers, 120 times that of our planet.
As for the Graviton Beam Emitter, it's a man portable wave motion gun and it's big claim to fame is that it's precursor tech that NO ONE else in the entire setting of the series has ever seen before, knows how to reproduce, or even knows how it works.

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u/ChronicBuzz187 Sep 07 '26
I remember watching the S3 mid-season finale of The Expanse that had already been operating on a pretty large scale and then the thing happens and it immediately catapulted a show I already loved into the "this is the best scifi show I've ever seen" category :D
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u/DJDevon3 Sep 07 '26 edited Sep 07 '26
Prometheus's Engineers qualified shortly. Then came Covenant
In the case of The Expanse the protomolecule resurrected part of a dead species so technically they were never truly extinct.
The same can apply to Doom the movie (based on the game franchise) where exploring Mars unlocked part of our own ancient history (Humans fled from Mars to Earth) which then kills us in the same way, again.
In Star Trek the Next Generation: Picard lives part of a life of an extinct species in the episode Inner Light. It was the last message of the species and a memory/time capsule for whoever came upon it. One of the best legacies left by an extinct race I can think of.
Much in the same vein as ultimately discovering we're descendants of the Engineers in Alien, Doom explains that the ancient ruins of a species we're investigating turns out to be our ancestors. So that is another similar plot. Sharing the same fate as our ancestors is the correlating moral lesson. We're always doomed to repeat the mistakes of the past after we forget about them.
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u/ValkyrieOrange Sep 07 '26
Guardians in Elite Dangerous. Elite Dangerous is an online space sim set in a 1:1 scale version of the Milky Way. Meaning there are over 400 billions stars in the game that you can visit.
Among those star systems you can find ancient ruins of an extinct race known as the Guardians. They went extinct roughly 1-2 million years ago due to the AI they created which still remain active at the ruin sites. Their technology has since been reverse engineered and integrated into human technology with the most common use being a way to boost hyperspace travel distances.
The Guardians were also in a prolonged war with another alien race known as the Thargoids who are still alive and active in the galaxy. The second human war with them just recently wrapped up in the game and human/guardian hybrid technology was very effective against the Thargoids.
There are other ancient civilizations in the game/lore but not much has been revealed about them just yet. There is a rare commodity called Soontill Relics which players can haul as cargo and there is evidence that life once existed on Mars before we colonized and terraformed it.

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u/Key-Radio5674 Sep 07 '26
The Webway in Warhammer. And most of the tech in this verse, actually. “We found this dope ancient techno artifact, we have no idea how it works. We’re gonna press this button and see what happens”
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u/Wufflon Sep 07 '26
https://giphy.com/gifs/A9agr772GRoPs7198f
Ancient Wyveria, Monster Hunter Wilds
The entire landscape of the Forbidden Lands, where MH:Wilds takes place, is littered with ancient relics and ruins of a highly advanced civilisation.
The different locations you hunt in are connected through underground infrastructure like a power grid, and each function(ed) as different parts of a defense network for a large city in the heart of the mountains.
For example, the desert area you start the game in has(/had) large defensive installations that would charged the air with high voltage when monsters draw near, and the flooded forest area grew on top of the outflow of an aqueduct system.
The season/inclemency system the game uses actually stems from the power cycles of the underground grid and the automated mechanisms the city once used, tho ofc the player only finds that out later.
The coolest part about that lore are the apex predators of these regions, which all evolved to specifically take advantage of the old tech lying around, and the inclemencies they create!
In the gif you can see a Rey Dau, which utilizes capacitor esque scales on its back to collect electric charge from the artificial thunder- and sandstorms, which they then channel between their horns to discharge it at prey or foes.
I love MH for stuff like this, they create a railgun dragon and still manage to make it make sense in universe and connect it with the environments in insanely cool ways, both gameplay and lore-wise
The other big thing the ancient Wyverians did was genetically engineering monsters, essentially creating hollowed out battery-fed zombie monsters to protect them against the other hostile dragons, which of course could never have backfired and destroyed their civilisation :)) Essentially reverse-engineering an Elder Dragon God and stuffing it in the power source for your whole country probably didn't help either, mightve been the final nail in the coffin
(tho i think we haven't seen the full extent of that blunder yet, I hope we will in the DLC)
the worldbuilding is so well done, every tiny detail is beautifully designed and feeds back into the fights of the monsters themselves, including most recently a giant goopy gluesniffer dragon that broke into the ancient armory and ate an actual railgun, which you can then break off it's back to use against it. Oh my gog it's so hype moments and aura
Play MH Wilds guys, it even runs on sub $2k PCs now😭
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u/WorthCryptographer14 Sep 07 '26
Star Trek's Iconians
Halo's Forerunners and Precursors
Stargate's Ancients
Babylon 5's Old Ones (and whoever built the planetary complex that Zathras lives in)
Mass Effect's Protheans and whoever came before them.
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u/tupe12 Sep 07 '26
Stargates from Stargate were made by the ancients, and have been used by everyone for thousands of years since
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u/HandsomePaddyRedux Sep 07 '26
The Moon(s) in The Fifth Element

Both “technology” and “extinct” are very debatably applied here, but in the Fifth Element it’s implied that Earth’s moon is the remains of Mr Shadow, a sentient ball of evil, when they last almost managed to reach the Earth in a 5000 year cycle of attempted destruction. The nature of Mr Shadow leaves it unclear to what degree the physical manifestation of evil is biological, technological, or even simply geological, as it shows elements of all of these properties. Since the effect the Fifth Element weapon has on Mr Shadow is also unclear, humanity’s knowledge of the composition of “our” moon doesn’t confirm or deny any possibilities, since a sufficient weapon could easily turn a biological or technological body into calcified carbon.
Whether Mr Shadow represents an extinct civilization is much more a philosophical question than a scientific one. If they are purely evil embodied then evil does continue to exist, but if they are from an intergalactic civilization that itself embodies evil, it’s possible, even likely, that the physical forms that threaten the Earth were dispatched hundreds of thousands, or even millions of years ago by a long dead civilization.
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u/AlphaBear0610 Sep 07 '26
Genshin Impact:
Dragon technology left behind by dragons, who have been extinct for more than 500 years (I don't remember exact dates). The tech has been used in multiple regions across the game
Khaenri'ah technology, still researched/used in "modern day" timeline
Hyperborean technology, first introduced in Snezhnaya (afaik) with world quests built around it
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u/TheDotCaptin Sep 07 '26
We are legion (We are Bob)
In the later book of the Bobiverse they happen upon a network of wormholes spanning part of the galaxy.
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u/TheHesou Sep 07 '26
I actually thought of that book too, but wanted to say that bob kinda fits itself in that. Like, how Riker came back to Earth and all that
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u/KaerMorhen Sep 07 '26
I'm deep into writing my own scifi series with a few different versions of this, though only one is relevant to the story. The whole thing takes place in one star system called Eos. Humanity has lived there for over twelve thousand years. Their "home" word Orias has a binary paired planet called Anteros that is tidal locked (and essentially looks like a bigger moon) and is home to another humanoid species. By then the humans have no idea how or why they ended up there, only that the earliest generations spoke about "The First Warmth" very far away. But imagine if for the entirety of human history, we looked up to see not a desolate moon, but (essentially looks the same as because I didn't want to completely slap science in the face) a moon with atmosphere and city lights and visible presence. Everything would change.
Now, in order to facilitate this world ending up this way I created (name pending change) The Five Elders, or the five earliest species through the galaxy that were the first to establish interstellar/galactic civilizations. There were originally over a dozen, but when a war breaks out with tech on that scale they almost completely wiped each other out. Little remains known about them by book 1, most deny they ever existed. Until an artifact shows up that completely disregards physics as an optional restraint. Anyway one of these elder species transported a generation colony fleet from their original route to the system that is home to the Vaelen. Humanities greater fate remains unknown for most of the series. Five monolithic pyramids spent a system year terraforming Orias on a massive scale.
Now inagine this developing species, they see Orias as a huge object in their sky at all times. They see these ships that they don't have any concept of and come to the logical conclusion (from their limited understanding) that"Obviously, the gods are creating life again. They're doing it right before our eyes!" Which has all kinds of implications 12k years down the road.
Then one day one very unlucky crew stumbled across something that puts them on the radar of every major faction in the system while they scramble to escape a system wide drag net and eventually forces way behind their understanding.
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u/AkumaLilly Sep 07 '26
The Lamorn Race from Metroid Prime 4
An intelligent species who (probably) traveled world from world searching for a home. Some Lamorn were born with psychic powers.
After landing in the planet Viewros, the Lamorn reach a technological boom, with weather machines, Advances AI, a Master Teleporter capable of taking anyone to anywhere (habitable) and the Memory Tree, an mysterious mechinal/biological tree capable of sharing their intelligence with all living species.
After some time. The Psychic Lamorn wished to shared their powers with the Non-psychic Lamorn so they created crystals capable of giving them the same powers.
But a Tragedy happen, using the "Green Energy" an unknown essence of the planet to enhance all Nature, it reacted horribly with the Psychic Crystals turning all Artificial Psychic Lamorn to feral beast called Grievers
The remaining Psychich Lamorn tried to undo the transformation but failed, eventually relying to finding someone to save them or save their legacy.
When Samus and GF Soldiers get teleported all Lamorn are probably dead, as the recording show that the Lamorn left to find her prophecized savior with one left on Viewros waiting eventually dying of old age after centuries.
Viewros is now inhabited by the natural Fauna and the Grievers with the old technology still working by themselves.
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u/Vaellyth Sep 07 '26
Don't want to say too much, but the Black and White moons, spears, and the basis for Angels and Evas from Neon Genesis Evangelion.
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u/wandering_soles Sep 07 '26

Dinotopia: The World Beneath! A lost Victorian era adventurer stranded on an inaccessible island where intelligent Dinosaurs and humans coexist finds a way into the subterranean world beneath the island and discovers an ancient lost civilization that had its own robotic 'stutter' dinosaurs powered by the sun. Fantastic read, highly recommend the whole series, although I would start with the first one. They're all worth it!
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u/Helgurnaut Sep 07 '26
Wanted to say Path of Exile with the Vaal (for example) but are you really extinct in a game where you can time travel.




























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u/Kumorrii Sep 07 '26
Basically everything left behind by the Dwemer in The Elder Scrolls. They had an advanced civilization, masters of their craft and creating bits of technology using science far ahead of other civilizations at the time before their race mysteriously disappeared one day.