After working on my previous Forza Motorsport 2 and Forza Motorsport 3 recompilation projects, I’ve started bringing Forza Motorsport 4 to PC using static recompilation.

Here is the first work-in-progress video:

https://x.com/herculabs/status/2110767000557429159

This is not a public release yet. The video is an early technical preview showing the current state of the project.

To follow development, you can find me on X: https://x.com/herculabs

What is this?

The original Xbox 360 PowerPC executable is statically recompiled into native C++ and connected to a PC-compatible runtime through the ReXGlue SDK.

The runtime recreates the Xbox 360 services required by the game, including graphics, audio, input, filesystem access, profiles and content management. The game’s CPU code is compiled ahead of time instead of being interpreted while running.

What currently works?

The project already boots and runs gameplay, with support for:

• Named local profiles with separate save directories
• Xbox and other compatible controllers
• Remappable keyboard controls
• Optional mouse input for the camera
• Installation of the additional content from Disc 2
• Language selection using the original game’s supported languages

The graphics options currently include:

• Internal resolution scaling up to 4×
• Anisotropic filtering
• FXAA
• AMD FSR and CAS upscaling
• Windowed and fullscreen modes
• A 16:9 aspect-ratio option
• Direct3D 12 rendering

Compatibility testing is still ongoing, so this does not mean every mode or configuration has been fully validated.

Custom launcher

The project includes its own launcher, adapted from my FM3 project and available in English and Spanish.

It can:

• Automatically identify the Play Disc and Content Install Disc
• Extract and verify the Play Disc files using SHA-256
• Install the four additional content packages from Disc 2
• Create, select and remove local profiles
• Configure graphics, controls, audio and language
• Verify an existing installation
• Launch the game

It also includes a reversible workaround for the square shadows seen during races. This skips certain exterior shadow maps while retaining cockpit shadows; it is a workaround rather than a complete rendering fix.

An experimental asynchronous shader option is available for testing whether it reduces compilation-related pauses. It can cause some objects or effects to appear late while shaders are being prepared.

Current state

This is still an early work in progress.

The game is running, and the latest changes appear to have improved the experience, but several areas still need testing and polish:

• Intermittent stutter and frame pacing
• Shader compilation behaviour
• Incorrect shadows and other graphical effects
• Audio compatibility across different systems
• Career progression and save behaviour
• Less common modes and local multiplayer

The runtime already caches shaders and prepares previously encountered pipelines at startup, but that does not eliminate every source of stutter.

Xbox Live and online multiplayer are not available.

There is currently no release date. I want to continue testing and addressing the main issues before publishing a first build.

Game requirements

No copyrighted game files will be included with the project.

The recompilation currently targets:

Forza Motorsport 4 for Xbox 360 — USA, Rev 1

Both discs are required for the complete installation:

1. Disc 1 — Play Disc
2. Disc 2 — Content Install Disc

Other regions or revisions may contain different executables and are not currently supported.

You will need to provide your own original game files.

Credits

This project is built with the ReXGlue SDK and benefits from the research and engineering work of the Xenia and XenonRecomp communities.

The race-shadow workaround is based on findings shared by the Xenia community.

This is an independent fan project and is not affiliated with, endorsed by or associated with Microsoft, Xbox or Turn 10 Studios.

I’ll share more progress as development continues. Feedback on the footage is welcome, especially if you notice graphical, audio or timing issues.

Thanks for watching!

Hi everyone!

After working on my previous Forza Motorsport 2 https://www.reddit.com/r/forza/comments/1x4vtiq/forza_motorsport_2_recompiled_xbox_360_to_run/ recompilation project, I’ve started bringing Forza Motorsport 3: Ultimate Collection to PC using static recompilation.

Here is the first work-in-progress video:

This is not a public release yet. The video is an early technical preview showing the current state of the project.

For follow the project just follow me on X: https://x.com/herculabs

What is this?

The original Xbox 360 PowerPC executable is statically recompiled into native C++ and connected to a PC-compatible runtime through the ReXGlue SDK.

It still recreates the Xbox 360 services required by the game—graphics, audio, input, filesystem, profiles and content management—but the game’s code itself is recompiled ahead of time instead of being interpreted while running.

What currently works?

The project can already:

• Boot into the game
• Play introduction videos
• Navigate the menus
• Run races and Free Play events
• Run gameplay at 60 FPS
• Create named local profiles
• Keep separate save files for each profile
• Use Xbox and other compatible controllers
• Use a keyboard with remappable controls
• Use the mouse to control the camera
• Load the additional cars and tracks from the Ultimate Collection
• Run in multiple languages from the original game

The graphics options currently include:

• Internal resolution scaling up to 4×
• Anisotropic filtering
• FXAA
• AMD FSR and CAS upscaling
• Windowed and fullscreen modes
• Aspect-ratio correction
• Direct3D 12 rendering

Custom launcher

The project includes its own launcher, available in English and Spanish.

It can:

• Install the game from an original Xbox 360 ISO
• Automatically identify the Play Disc and Content Install Disc
• Extract and verify every file from the Play Disc
• Install the eight additional content packages from Disc 2
• Create, select and remove local profiles
• Configure graphics, controls, audio and language
• Verify an existing installation
• Display logs and crash information when something goes wrong
• Launch the game

The launcher also has integrated support for installing, updating and removing Project Forza Plus 3.

Its additional options include:

• Selecting the normal or expanded progression mode
• Enabling the harder AI configuration
• Adjusting the field of view
• Applying compatible introductory save files
• Enabling an optional workaround for problematic track shadows
• Restoring the original files when the mod is removed

Current state

This is still an early work in progress.

The game is already playable, but I’m not calling it ready for release yet. Some areas still need investigation, testing and general polish:

• Occasional stutter when new shaders or graphical content appear
• Frame pacing can still be improved
• Minor audio crackling may occur on some systems
• Some graphical effects may not render perfectly
• The full career has not yet been tested from beginning to end
• Less common modes still need more coverage
• Local multiplayer has not been thoroughly tested
• Xbox Live and online multiplayer are not available

There is currently no release date. I would rather continue testing and fixing the important problems before publishing a first build.

Game requirements

No copyrighted game files will be included with the project.

When it is released, you will need your own original American copy of:

Forza Motorsport 3: Ultimate Collection for Xbox 360

Both discs are required:

1. Disc 1 — Play Disc
2. Disc 2 — Content Install Disc

The recompilation currently targets the American Ultimate Collection executable specifically. Other regions or editions may contain a different executable and are not currently supported.

*Download* (NOT TESTED) https://github.com/0herculabs/hl360-forza3/releases

Credits

This project is built with the ReXGlue SDK and benefits from the research and engineering work of the Xenia and XenonRecomp communities.

Project Forza Plus 3 belongs to its respective creator or creators; this project only provides an installation and configuration path for users who choose to use it.

This is an independent fan project and is not affiliated with, endorsed by or associated with Microsoft, Xbox or Turn 10 Studios.

I’ll share more progress as the project becomes more stable. Feedback on the footage is welcome, especially if you notice graphical, audio or timing issues that I may have missed.

Thanks for watching!

Hello racers! BigHedDjango here with tunes for this week to help you out.

All feedback on tunes is appreciated - good or bad. Specially when tunes are bad. At the end of the day I am just the mechanic and you guys are the racers. Do not hesitate irrespective of your tuning knowledge or racing skills!

Tuning method: 1. No aero, stock look, stock rims (unless absolutely necessary for handling and stability) 2. Tuned and tested for Automatic/Manual shifting vs Expert AI (meta cars will beat current broken Unbeatable as well, driver skill is required) 3. Max performance, power/weight with max handling possible

NOTE: Please apply all tunes twice, same bug as FH5 carries over. Apply tune again if it doesn't show in car select

Forzathon Weekly Challenge - In Focus

2017 Ford Focus RS * Tune - 144 658 785 * A Road v1 Body Kit; Slow overall; No A class top speed; Wide body kit; Rear lip aero

NOTE: Co-op AI in these games is always a step lower than solo. So Trial Unbeatable should be equivalent to Solo Expert. Try to block and slow down AI and help teammates in order to win. One player on the team needs to take at least Position 3 and slow down the AI for a guaranteed win

Trial - Take It From the Top

Cross Country - Unlimited Offroad - A 700

1993 Toyota #1 Baja Truck * Tune - 528 153 143 * A Dirt CC v1 No Aero Stock Look; 7 gears

2016 Jeep Trailcat * Tune - 114 785 466 * A Dirt CC v3 True Purist No Aero Stock Look; Good handling; No A class top speed; High profile rear tires; Stock engine * v3 - better susp

2016 RJ Anderson #37 Polaris RZR Pro 2 Truck * Tune - 889 567 125 * A Dirt CC v3 No Aero Stock Look; No A class top speed; Stock engine

NOTE: Just like with FH5 launch, the AI is once again out of it's mind. Doesn't know how to break, rams you from behind on hard breaking corners, T-bones you on turns, slams into guardrails if you go too fast etc etc. Unbeatable/Pro difficulties are simply not worth the time or effort right now outside of meta cars, and even then sometimes you need to get "touchy feely". For now co-op races seem to be fixed at Novice difficulty and solo championships can be completed on any difficulty so feel free to drop down to Tourist (and turn on Auto Race, go make a sandwich ;)

Championship 1 - Coming In Hot

Dirt Racing - Retro Hot Hatch - C 500

1997 Honda Civic Type R * Tune - 128 067 969 * C Road Dirt v1 No Aero Stock Look; Fast; 7 gears; Stock engine

1995 Volkswagen Corrado VR6 * Tune - 456 477 034 * C Road Dirt v2 No Aero Stock Look; 9 gears * v2 - rebuild, faster, smoother, reduced braking lockup

1994 Honda Prelude SI * Tune - 108 274 296 * C Road Dirt v1 No Aero Stock Look; 7 gears

Championship 2 - Weekend Break

Road Racing - United States - B 600

1982 DeLorean DMC-12 * Tune - 115 605 721 * B Road v2 No Aero Stock Look; Strong accel; Good braking; High B class top speed; 7 gears * v2 - smoother, faster, 7 gears

2000 Ford SVT Cobra R * Tune - 830 419 871 * B Road v1 No Aero Stock Look; Good handling; High B class top speed; Stock engine

1969 Ford Mustang Boss 302 * Tune - 491 888 941 * B Road v1 No Aero Stock Look; Lacks fine handling; Stock engine

Championship 3 - Fully Charged

Street Racing - Electric Vehicles - A 700

2022 Hyundai N Vision 74 * Tune - 150 234 367 * A Road v1 Stock Aero Stock Look; Fast; Good accel; Good handling; Stock motor only

2021 Audi RS E-Tron GT * Tune - 507 609 634 * A Road v1 Purist No Aero; Strong accel; Feels heavy but decent handling; Max P/W; Custom rims; Stock motor only

2023 Hyundai IONIQ 5 N * Tune - 101 158 507 * A Road v1 True Purist No Aero Stock Look; Lacks accel; Low A class top speed; Max P/W; Stock motor

Seasonal PR Stunts

PR Stunt 1 - Speed Trap - Konbini Dash - Nissan - B 600

1987 Nissan Skyline GTS-R * Tune - 168 092 392 (B Road v1 No Aero Stock Look) * Start ~580 yards or ~530 meters away at north road T-point

PR Stunt 2 - Drift Zone - Shiro Switch - Nissan - B 600

1973 Nissan Skyline 2000 GTR * Tune - 131 499 883 * AWD Dirt Drift; Drift tune by OxGRIDRUNR; Stock look

X Class PR Tunes

2015 Ultima Evolution Coupe 1020 * Tune - 159 335 837 (Road) * Road PR Stunts v1 Stock Aero Stock Look; Anti-lag; Cheapest Autoshow car 150k for all PR stunts * Tune - 100 819 180 (Offroad) * Offroad PR Stunts v1 Stock Aero Stock Look; Anti-lag; Cheapest Autoshow car 150k for all PR stunts

Event Lab Blueprints!

Easy Win Road Sprint - 101 638 582

Easy Win Road Circuit - 161 320 434

Easy Win Dirt Trail Sprint - 850 790 624

Easy Win Dirt Scramble Circuit - EVENT LAB BUGGED FOR NOW

Easy Win Cross Country Sprint - 146 632 814

Easy Win Cross Country Circuit - EVENT LAB BUGGED FOR NOW

Easy Win Street Sprint - EVENT LAB BUGGED FOR NOW

Horizon 6 Master Sheet

https://docs.google.com/spreadsheets/d/1Nv00La9g2RxTT5PHsYEhQAyznAfLdGDT3mTgPNPBf6A/edit?usp=sharing

Horizon 4 and 5 Tunes Archive!

https://www.reddit.com/user/BigHeadDjango/comments/r4ptt6/forza_horizon_4_and_horizon_5_tunes_archive/

Thank you to everyone for your downloads, uses, likes, follows, shares and feedback! Check my in-game profile for more tunes. You can check my reddit profile for more content

📸 Also don't stop yourself from checking out my photos on the creative hub. Wow! What beautiful photos! 📸

Don't hesitate to ask if you need any help!

🛠️ I am open to requests for cars you might want me to tune so let me know the car and class and I'd get back to you! 🛠️

Have a great week! 🥳

I put the Honda badges on this car tried to make it look like a stock type R

every wheelrim and paintjob the same (well,95%)

And then two days ago I got FH2. And now I have to do it all again for 337 cars...

I dont know where to start!

I would like to play the Storm island DLC but isn't available to download anymore.

I'm currently working on it. The project is based on Azimuth but it was highly modified to run Forza Motorsport 5 due to the SDK differences.

If you appreciate my job you can donate here:
https://ko-fi.com/lozazamastro

It’s time for season seventy three of the Forza Spec Racing Series, the weekly beer league of Forza eSports. Where the championship is arbitrary, but the fun is mandatory. We are geared to those who race casually yet cleanly. All levels of ability are welcome.

The season will consist of 9 races over the course of 5 weeks. Races will be held once a week on Tuesday evenings at 7:00pm Central (US). Each night will last around two hours. The first race night is 10/20/26. Participants all run the same car and upgrades however tuning is allowed. This is a simulation damage series.

To learn more please visit our Reddit page r/FM4
Game: Forza Motorsport 8
Thanks for viewing.

I love the r23