Create Games with your Imaginations

An icy white dragon portrait in distressed cyan and black halftone

Ryuo
Games

Ryuo Studio with the MacSim racing game running live in Unreal: the chapter map on the left, the night-city race start in the game view, and the agent's plan for the night city on the right — MacSim, a racing game built with Ryuo, running live in Unreal Engine 5.8

A finished chapter step waiting for review, with the agent's summary, verification evidence and an Accept result button — MacSim, a racing game built with Ryuo, running live in Unreal Engine 5.8

A studio that builds, plays and checks its own work

The chapter map for MacSim: Core loop done, World & levels in progress, with Vehicles, UI, Art pass, Onboarding and Balance & feel still to come

Chapter by chapter, from idea to build

Pick the kind of game you're making. Ryuo lays it out in chapters, from concept and greybox to art pass and packaging, and ticks off each step as the game comes together.

The model menu in the composer, listing Opus 5.5, Fable 5.1, Sonnet 5.5 and Haiku 5.5 with an effort slider

Your choice of model

Auto picks a model for each task, or choose one yourself. You can also run Ryuo on your own Claude Code or Codex subscription.

The agent answering a request to turn the track into a night city, with its plan and the completed editor steps

Works in the real editor

It reads your project, plans the change, then writes C++, runs Python in Unreal and builds levels in the editor you already use.

The Generations panel with imported trees, rocks, a street lamp and plants, each marked as a 3D asset

Makes and imports assets

Generates meshes, sprites, sound and music, or pulls free models from Poly Haven and Kenney, and imports them straight into your project.

The live game view of the MacSim race start at night, with lit towers, the checkered start gate and the car on the grid

Play-tests every change

Ryuo plays the game in the editor, reads the logs and screenshots, and hands you the result to accept or send back.

Real code. Real assets. Your game.Ryuo Games · Studio demo