I Turned Claude Code Into a Game Studio (free kit)
Duncan Rogoff | Learn Claude CodeDuncan Rogoff | Learn Claude CodeKey takeaways
Claude Code can build playable games from a free game kit, then refine them through visual self-checks and human playtesting. In this example, Comet Run and Terraform were built in under an hour, though they are simple games.
The five moves are to install the game kit, specify the idea, vibe, and 2D or 3D format, polish the most noticeable feature and add responsive effects, have Claude inspect screenshots after each change round, and play the game yourself to report what feels wrong. Browser checks can catch errors, but they cannot determine whether a game is fun; human feedback led to clearer Terraform building and separated ring-collection and combat phases in Comet Run.
Video Flow
- 0100:00
Comet Run previews what the kit can build
Comet Run is a 3D space shooter built with Claude Code, featuring ring collection, a giant planet, enemy waves, and a boss. The workflow aims to avoid games that look like flat shapes or work only in screenshots.
- 0200:30
Install the game kit and specify the game
The free game kit supplies game-building instructions and tools, art generation, and testing; installation is by downloading the kit, adding its ZIP file to Claude Code, and asking it to install the skill. A useful prompt states the idea, visual vibe, and whether the game is 2D or 3D, as in the detailed Comet Run prompt and the contrasting Terraform planet-builder concept.
- 0302:03
Polish the defining visual feature and add game feel
Once a game works, polish what players notice first: Comet Run gets light streaks, glowing engine trails, and camera movement on boosts, while Terraform opens on a slowly rotating, sectioned planet and zooms into a selected section. Add responsive effects such as screen shake, explosion sparks, and sounds to make actions feel alive.
- 0402:42
Run browser checks and iterate on screenshots
The kit opens the game in a real browser and treats even one browser error-log entry as a failure. Claude can also take a screenshot after every change round, identify the weakest visible element, and fix it; six rounds improved Comet Run in under an hour.
- 0503:24
Playtest and report what feels wrong
Human playtesting catches problems that error checks cannot: building on Terraform’s small round planet was confusing, so the build view changed to one flat section. In Comet Run, simultaneous ring collection and enemy dodging felt overloaded, so rings and battles were separated into alternating phases; plain-language feedback and one or two changes at a time are sufficient.
Tools & Resources
Builds the games and applies requested changes throughout the workflow.
- 01Builds the games and applies requested changes throughout the workflow.00:03
- 02Builds the games and applies requested changes throughout the workflow.02:09
- 03Builds the games and applies requested changes throughout the workflow.02:57
- 04Builds the games and applies requested changes throughout the workflow.03:40
A free game-building skill kit that selects tools, creates art, and tests games.
Specifies a 3D space shooter, its track and mechanics, and its bright neon visual style.
- 01Specifies a 3D space shooter, its track and mechanics, and its bright neon visual style.01:08