Find the game worth making.
Turn genre research into a creative direction. Shape the mechanics, progression and balance that give your game depth.
Research · Game design · BalancingonGame CLI + MCP
Turn your coding agent
into a game studio.
Game design, art, animation, audio and playtesting, working together inside the agent you already use.
Let your agent handle setup.
Paste a prompt into Claude Code. It takes care of installation and guides you through sign-in.
Paste into your coding agent to get started.
Or install with one command.
Choose an operating system
Choose the computer you’ll install on to get the command.
Run in your terminal to add onGame CLI + MCP to Claude Code.
More setup details
Open a new Claude Code session in your game folder. In an existing session, run /reload-plugins first.
Have Claude Code installed before connecting. Node.js 18+ enables browser playtesting. The installer adds onGame’s game-making skills and local MCP server together.
Manage your onGame accountThe craft behind
a great game.
onGame brings the specialist tools and creative workflow. You make the decisions that make it yours.
Give your world its character.
Create 2D and 3D art, animation, music and sound effects around your vision. Build a world that feels like it belongs together.
Art · Animation · AudioMake every interaction count.
Build, playtest and refine in your own project. Shape the controls, pacing and game feel until it plays the way you imagined.
Development · Playtesting · PolishYour game could be the start of something bigger.
Meet the onGame Publishing Cohort.