Gems and pricing
Shiny Gen is free to use, and no subscription is required. Playing and sharing games costs nothing, and so does building by hand; AI generation and the built-in AI agent spend gem credits. You can buy gem packs that never expire, or an optional membership that adds monthly gems.
What's free
- Building and editing games by hand, including editing their code yourself.
- Playing your games and games shared with you.
- Sharing games with links, exporting games you own for the web, and importing your own images.
What uses gems
Gems are Shiny Gen's credit currency. They are spent on AI generation (images, sprite animations, 3D models, sound effects, and music) and on the built-in AI agent, which spends gems for each chat step based on the model you pick. Each generation shows its gem cost before you run it, the agent's model picker shows what each model costs, and your balance is always visible in the app.
Free gems
New accounts start with free gems.
Buying gems
- Gem packs: one-time purchases that never expire.
- Membership (optional): adds a monthly allocation of gems. You never need a membership to keep building, playing, or sharing.
Current prices are shown in the app.
AI assistants
An outside assistant you connect over MCP runs on your own AI plan, so its code edits cost no gems; only the AI generation it runs spends your gems. Shiny Gen's built-in AI agent runs its model on Shiny Gen, so each of its chat steps spends gems as well. For both, a daily gem cap limits how much an assistant can spend in one day, and on the free tier a weekly allowance limits how many actions it can take — after a 30-day trial that starts at your first connection. Reading is never limited, and paid members are not subject to the weekly allowance. See Connect Claude or ChatGPT for the details.
Ownership and commercial use
You own the games and assets you create with Shiny Gen, and you can use them commercially. You grant Shiny Gen a license to host and display your content so sharing and publishing features work. See the Terms of Service for the exact terms.
Last updated: September 18, 2026