Start with a game someone can actually play.

A strong first game has a clear verb, readable feedback, and a reason to try again. Describe the rules before the visual effects: how a run starts, how someone succeeds, what ends it, and how they restart. Uvilno can generate browser game code and an isolated playable preview. Keep the initial loop modest so input, collision, progression, sound consent, and phone controls can be checked together.

Explore three briefs

Free to start. Source stays private until unlock. See pricing.

AI Browser Game Builder — Playable Game Briefs

Updated

A good fit when the scope is clear.

Creators exploring compact single-player games, interactive promotional experiences, and game prototypes for the browser.

Use the route plan to decide what belongs in your first build. Bring your own facts, review the saved result, and expand only when the core journey works.

What should actually work.

  • Start, pause, resume, game over, and restart are distinct reachable states.

  • Keyboard and touch controls produce the same core action; focus stays usable outside the canvas.

  • Sound begins muted, visual effects respect reduced motion, and local best scores survive an ordinary refresh.

Know the service boundaries.

  • Performance depends on the generated code, assets, device, and browser. Do not promise a universal frame rate.
  • Local records are editable client data. A shared leaderboard requires the supported explicitly requested service and must be labelled client-submitted.
  • Multiplayer servers, anti-cheat, game-store publishing, and monetization are separate implementation work.

Three places to begin.
Make one yours.

Choose a direction, change the details, and carry the brief into Uvilno. Sign in, name your project, then review the brief in chat before you explicitly send the first build.

Replace the details with your own. Opening a brief does not start a build or use generation capacity.

From a brief to a result you can review.

Uvilno supports static websites and eligible multi-file Next.js projects. The output, connector setup, and execution limits depend on your project’s actual engine and scope.

  1. Plan the journey

    Name the routes, inputs, and expected behavior. Plan mode lets you review and explicitly approve a direction before building.

  2. Build and refine

    Review the isolated live preview, check desktop and phone layouts, and ask for focused changes. Recoverable builds can retain saved draft progress within their retention limits.

  3. Keep the work

    Use Inspect & Edit for supported mapped text, link, and color changes. Unlock source when ready to inspect, export, or use source GitHub sync.

Questions worth settling first.

Can I request a leaderboard?

Request it explicitly and distinguish local scores from a shared board. Supported shared leaderboards publish pseudonymous client-submitted scores through isolated project accounts. They are not evidence of anti-cheat or verified competitive results.

What makes a good first game prompt?

Define one core action, a success condition, a loss condition, and restart behavior. Name keyboard and touch inputs. Add the visual direction after those rules so the generated result can be evaluated as a game.

Will the game work equally well on every phone?

That cannot be guaranteed. Test actual touch controls, viewport sizing, audio permissions, and performance on the devices you intend to support. Reduce effects and asset complexity when the core loop needs more headroom.

What does Uvilno cost, and when can I access source?

Free is $0. A permanent project source unlock is $4.99 once. Plus is $10/month with 2 new project unlocks per paid month; Pro is $20/month and Ultra is $59/month, with unlimited new source unlocks during the paid period. Generation remains usage-limited; the meter shows remaining capacity from 100% to 0%. Already unlocked projects remain downloadable after cancellation.

Take the next decision with you.

Useful guides

Compare the workflow

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Check the architecture. Compare the tradeoffs.

Follow the data model, account boundary and source handoff before choosing a builder.

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Plan a full-stack app

Review the evidence