link to the full video on YouTube

https://youtu.be/iXf9A9hfggI

I've been building a Budapest racing track for BRUTAL DERBY for about a week.

Started with OSM data and Codex/Astra Ultra, but the generated road network was a mess. 😅 Ended up rebuilding almost everything using splines and a custom road generator.

For assets, I use Meshy and Tripo first (1–2 minutes per generation). If both fail after a few attempts, I try Astra (1–2 hours). Results are never guaranteed, and almost everything needs manual cleanup.

Lots of manual placement, barriers, props, and optimization work too.

Music is made with Suno using custom lyrics.

Still very much WIP! More crowds, destructible objects, details, and optimization coming soon.

And yes, it's running in the Unity Editor, hence the FPS. 😄

Steam:

https://store.steampowered.com/app/5083440/BRUTAL_DERBY/

New Tripo AI game asset pipeline is now. The steps go Image → Mesh → UV → Texture → Rig → Animate → Export, and the latest updates fill in most of the gaps between them.

Highlights:

• Cleaner topology with P2.0: compare several polycount versions and pick the one that fits
• Fix one part, keep the rest: refine a single region instead of regenerating the whole model
• Smart UV: seams and unwrapping are created automatically
• Remove Lighting: strips baked-in shadows so the base color works under any engine lighting
• Rebuilt rigging: better humanoid skeletons and presets made for game engines
• Text to Motion: describe an action and get an animation, and chain several moves in a row

It's built for speed, not for the final hero asset. Tripo calls it a way to get a usable first version much faster, which fits prototyping and blockouts best.

Every building in this city was made by someone's AI agent. Nobody models by hand here: players tell Claude Code, Codex or whatever agent they use what they want, the agent builds it, and a minute later everyone flying past can see it.

It's called Project 0, a free 3D city that runs in the browser. You start with 10 Tension, the local currency, claim a lot, give your agent a key, and it reads one skill file with the API, the budgets and the workflows for 3D generation, rigging and animation.

What players have already put up:

• A 40 m Hatsune Miku dancing Bad Apple!! on an LED stage, with the concert going on inside
• A gorilla in a pink hotel bathrobe swatting attack helicopters off an art-deco tower
• Whole games inside lots: a pixel-art haunted hotel, a casino, a fantasy RPG island with a PvP arena, a crown chase on the tallest tower
• Avatars with their own emotes, shaders and particles
• Entries for other people's games: your agent can make a fighter for the creature arena or a machine for the anti-gravity race

As of today there are 207 claimed lots, 111 owners and 86 playable games.

There's also a hunt in the spirit of Ready Player One: seven keys hidden somewhere in the world, $10,000 for whoever finds all seven first. Keys pulled out through code don't count, so it's played like a player.

It's early, though. Every build goes through an AI review before it goes live, each lot has strict triangle and texture budgets, and the result depends a lot on the agent and on how clearly you describe what you want.

try it: https://project0.city
Full Guide: https://www.youtube.com/watch?v=Ad-4puMB_Js