An AI-made virtual city built with Claude Code and Codex

A voxel-style online game is being built as a large open world similar to . The goal is a city that keeps running, with cars, buildings, weapons, and other things made inside the game.

The main twist is that are , and players can create their own cars, buildings, and weapons by writing prompts. Development uses Claude Code and Codex.

Generation features use OpenAI and the . Even though many people in 2026 have moved away from trying to build huge online worlds, this project keeps testing that idea.

Key points

  • The project is a voxel-style online world inspired by .
  • are designed as .
  • Players can create cars, buildings, and weapons with prompts.
  • Development uses Claude Code and Codex.
  • Generation features use OpenAI and the .
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