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Build games with an agent that proposes every change before applying it.

Forge is a desktop AI harness for indie game devs. Sign in with your own ChatGPT plan. Plug into Unity, Godot, or any web stack. Generate art, audio, 3D, and code, all reviewed before it lands.

Your plan, your inference

Forge runs the OpenAI Codex binary as a sidecar. You sign in with your ChatGPT account, and the agent uses your plan’s inference budget. There is no Forge proxy in the middle, and the model stays whatever ChatGPT’s latest is.

Reviewed before applied

Code edits land as diff cards with per-hunk accept and reject. Memory writes land as proposals you confirm. Forge never touches your files silently.

Engine-native bridges

Connect Unity for live console, hierarchy, and write tools. Connect Godot for scene-tree inspection and GDScript outline. Web stacks run inside a live preview tab.

Custom tools, not just chat

Asset studio for voice, music, sound effects, sprites, 3D, and motion capture. Pipeline tools for palettes, sprite sheets, tilemaps, 9-slice, shaders, Aseprite, and audio trimming. A task runner. Indexed memory search across your project.