Type an idea.
Play in 3D.
Riffgame turns a sentence into a real, playable React Three Fiber game — opened right in your phone's browser. No code, no install for your friends, no waiting.
Tap an idea. Riff your own.
Three steps. No code. No catch.
Describe the game
Type one sentence in the chat. "A drift-racer through Tokyo at sunset with cherry-blossom particles." The agent parses your idea and picks the right components.
Watch it build
Every skill it reads, every file it writes, every compile + smoke test attempt streams to your chat. When something runs long, it tells you what it's trying.
Play and share
Tap Play. The game opens in Safari, full-screen, with touch controls already wired. Share the link — your friends play instantly, no install.
Built like a working coding agent.
Watch the AI build, live
Every tool call, every file write, every compile attempt streams to your chat — just like a working coding agent. No waiting in the dark.
Phone-first controls
On-screen joystick, tap buttons, swipe gestures — all wired into every game automatically. Play with one hand on the train.
Real WebGL games
Each Riffgame is a real React Three Fiber project. Share a link, your friends play in their browser. No App Store. No install.
Iterate by chatting
"Make jumps higher." "Add lava traps." "Give the enemies hats." The agent picks up where it left off and ships a new version.
Export your source
Pro users can download the full source. Tweak it locally, push to your own host, ship to itch.io — it's yours.
Curated skill library
The agent reads from a library of proven R3F patterns (camera follow, touch joystick, enemy AI) so games feel polished from version one.
Real games, made with Riffgame.
Every game below was generated from a single prompt. Tap any card to play instantly in your browser — no install, no sign-in.
Things people ask.
What is a "riff"?
A riff is the energy unit that powers each generation. Quick prompts use ~20 riffs; ambitious ones can run higher because the AI burns more tokens. We even cover small overruns so you're never stranded mid-build.
Do I need to know how to code?
No. You type your idea in plain language and the agent writes all the React Three Fiber code. Pro users can optionally export the source to keep iterating in their own editor.
Where do my games live?
Each game is published to a unique URL on Google Cloud Storage. Anyone with the link can play it in their browser — no install, no sign-in needed.
How long does a build take?
Usually 30 seconds to 5 minutes depending on complexity. You can watch the live activity feed: skill reads, file writes, build attempts, and the headless smoke test that validates each game before publish.
What about copyrighted characters?
The agent works with prompts you write, so don't paste copyrighted material. Generated games use procedural geometry and code only — no copyrighted assets are bundled.
Can I cancel my subscription?
Anytime. Manage subscriptions in iOS Settings → Apple ID → Subscriptions. Cancelling stops future renewals; your current period keeps all benefits until it ends.
Riff with us.
Riffgame launches soon. The App Store and Google Play badges above will go live the moment we hit "ship".