> ## Documentation Index
> Fetch the complete documentation index at: https://docs.youniverse.ai/llms.txt
> Use this file to discover all available pages before exploring further.

# Build a 3D game

> Play or sell your own game in weeks, not months.

<Frame>
  <img src="https://cdn.youniverse.ai/blog-hero/docs/games-racing.jpg" alt="Low-poly race car on a glowing glass track" />
</Frame>

Describe the game you've always wanted — a racer, a puzzle, an arcade shooter — and the AI Builder creates a playable 3D game in the browser.

## A good first prompt

> Build a 3D arcade racing game with three tracks, a lap timer, a leaderboard and touch controls for phones.

Then refine: add power-ups, tune the camera, change the art style.

## Sell it

<Frame>
  <img src="https://cdn.youniverse.ai/blog-hero/docs/games-sell.jpg" alt="Glass game controller with coins, stars and a trophy" />
</Frame>

Add sign-in, payments for unlocks or a one-time purchase, and publish to your own domain.

## Common questions

<AccordionGroup>
  <Accordion title="Do players need to install anything?">
    No. Games run in the browser, including on phones.
  </Accordion>

  <Accordion title="Can I charge for my game?">
    Yes. Add sign-in and payments for unlocks or a one-time purchase, then publish to your own domain.
  </Accordion>
</AccordionGroup>


This documentation is built and hosted on [Mintlify](https://mintlify.com), a developer documentation platform.