It's called Pocket Guild, and there's a demo on itch.io you can play right now! Heavily inspired by 90's first person dungeon crawlers like Ultima and The Elder Scrolls: Arena.
It's definitely still a huge work-in-progress, so expect some rough edges!
There's a hub, called simply "The Town", where you stock up on supplies and pick up monster hunting quests from the Guild Master. The NPC's around town will also eventually have their own detailed storylines and quests.
Stepping outside one of the four gates will take you to a massive, randomly generated Adventure Zone. These are packed with enemies, abandoned forts and ruins, dungeons and loot! If all your party members die, you lose all your stuff (except your gold) and wake up in Town.
AI disclaimer: Claude Code is used to prototype mechanics and systems, and then everything is manually tuned or completely rewritten by me. Very little "AI generated" content exists in the code.
All of the sprites and other assets came from human itch.io asset pack artists. Some of the ground and building textures were generated as placeholders by Claude and were then extensively modified by hand to become what they are now.