3D endless runner
Lanes, obstacles, rising speed.
three.jsAI Game Agent · 3D with three.js · 2D with canvas
Describe a game.
Play it in minutes.
Chat with Playnava's agent and it designs, draws, codes and playtests a real browser game. It runs right beside the chat — change anything by asking.
- 15 free credits, no card
- Playtested on desktop + phone
- Share link or zip download
three.jsHTML canvascannon-es physicsTouch controlsAI sprites & 3D modelsitch.io-ready zip
How it works
One agent, the whole game loop.
You talk. The Game Agent does the four jobs a solo dev juggles, in order, every time you ask for something.
- 01
Design
The agent turns your message into a game plan: genre, controls, win and lose rules, what the player sees. Ask it anything before it builds.
- 02
Draw
It generates the art the game needs — sprites, textures, backgrounds, textured 3D models — and keys sprite backgrounds out for you.
- 03
Code
It writes a real HTML game: three.js for 3D or canvas for 2D, cannon-es when it needs physics, keyboard and touch controls built in.
- 04
Playtest
Before you see it, a headless browser plays the build on desktop and on a phone. If it crashes, the agent fixes it and tests again.
Starting points
Start from a template, or from nothing.
The agent picks a starter that fits your idea and rebuilds it into your game. Prefer a clean slate? It starts from a blank 3D or 2D project instead.
3D arena survival
Waves closing in from every side.
three.js2D platformer
Jumps, platforms, hazards, a goal.
canvas2D space shooter
Ships, bullets, waves, power-ups.
canvas+ Blank 3D racing, flight, marble physics, sandboxes+ Blank 2D puzzles, match-3, snake, breakout, card games
The studio
Build it, change it, ship it — in one tab.
Everything around the game is handled too: history, art, phones, sharing and the files to publish anywhere.
Every change is a new version
Ask for faster enemies or a new level and you get v3 next to v2. Switch between versions and play any of them — nothing you liked is ever lost.
Plays on phones
Games ship with on-screen touch controls and are tested at phone size, so the link works for whoever taps it.
Share with a link
Every game gets its own page. Send it to friends, playtesters or a Discord — they play in the browser, no install.
Download the zip
Plain HTML and JavaScript. Upload it to itch.io or any static host and it runs as-is.
Real physics
Stacking, ragdolls, marbles, cars: when a game needs physics the agent wires in cannon-es.
AI art, made for your game
The agent generates assets when your game needs them and drops them straight into the build. No asset store, no exporting, no file juggling.
Auto-playtest
It plays your game before you do.
AI-written code breaks. Playnava catches it: every build is opened and played in a real browser, and fixed if it errors — before it reaches your screen.
- Played on a desktopServed over HTTP at 1280×720, Space pressed, a few seconds of real play, console read.
- Loaded on a phoneA 390×844 touch screen catches the crashes that only happen on mobile.
- Repaired, then re-testedProblems go back to the agent with the error. Up to two repair rounds per build.
- Broken builds are refundedIf a build still will not run after repair, its credits come back automatically.
Pricing
Pay per build, in credits.
Start with 15 free credits — enough for a full game and a round of changes. No card needed.
What things cost
- New game build5 credits
- Revision by chat2 credits
- AI image or background1 credit
- Textured 3D model4 credits
- Video clip4 credits
Playtests and repairs are included. Builds that can't be fixed are refunded.
Starter
$12/ month
300 credits every month
- 300 credits per month
- ~40 new games or ~120 chat edits
- AI sprites, backgrounds, 3D models and video
- Share links and HTML download
- Failed builds refunded automatically
Pro
Most popular$29/ month
900 credits every month
- 900 credits per month
- ~150 new games or ~400 chat edits
- AI sprites, backgrounds, 3D models and video
- Commercial license for your games
- Share links and HTML download
- Failed builds refunded automatically
Questions, answered
What to know before your first game.
What is Playnava?
Playnava is an AI game agent you chat with. Describe a game and it writes a design brief, generates the art, codes the game and playtests it in a browser. The game is playable right next to the chat, and you change it by asking.
Do I need to know how to code?
No. You describe what you want in plain words — "make the jumps floatier", "add a boss after level 3" — and the agent edits the code. The full source is yours to read or download if you do code.
What kinds of games can it make?
Browser games in 3D with three.js or in 2D with HTML canvas, with cannon-es physics when a game needs it. Starters cover a 3D endless runner, 3D arena survival, a 2D platformer and a 2D space shooter; anything else starts from a blank 3D or 2D project — puzzles, racers, match-3, breakout and so on.
How long does a game take?
A new game usually takes 2 to 5 minutes, including the automatic playtest. A revision changes the existing code instead of starting over, and becomes a new version you can switch back from.
What does the playtest check?
Every build is served and opened in a headless Chromium at desktop size, where the checker presses Space, plays for a few seconds and reads the console, and then loaded on a 390×844 touch screen. If something breaks, the agent repairs it and tests again before you see it.
Can I share or publish my game?
Yes. Every game has a share link at playnava.com/play/… that anyone can open and play in the browser, on desktop or phone. You can also download a zip of plain HTML and JavaScript that runs on itch.io or any static host.
How do credits work?
A new game build costs 5 credits, a revision 2, an AI image 1, a textured 3D model 4 and a video clip 4. Playtests and repairs are included, and a build that cannot be made to run is refunded.
Can I try it for free?
Yes. Every new account gets 15 free credits and no card is needed — enough for a full game plus a few rounds of changes.
Press start
Your game is one message away
15 free credits when you sign up — a full build plus changes. No card needed.
Make a game for free