Free tools for your next AI game
You made a game with AI. We make it playable — auth, multiplayer, saves, analytics, and shareable links in one small SDK.
Free for now · No backend setup · No credit card
From AI prototype to playable game
Your agent can build the game logic. We handle the layer that makes it usable by real players.
Prompt your game
Your agent builds the gameplay.
Add the SDK
One file, one game ID.
Share a link
A playable URL for anyone.
Play together
Guests, saves, multiplayer.
Everything your game needs after it starts working
Shareable URL
Ship a playable link in seconds
Your game shouldn't live only on localhost. Add the SDK and get a shareable URL you can send to anyone.
Free to share. Free to test. Free to show your friends.
Multiplayer
Tell your agent to make it multiplayer
Rooms, player presence, and shared state — without building your own networking stack.
“Add 4-player multiplayer: create a room and sync player positions.”
Saves
Let players pick up where they left off
Progress, inventory, and unlocks in one JSON document per player — so a prototype feels like a real game.
Continue as guest?
Play instantly — no password needed.
Play as guestPlayer identity
Give every player an identity
Guest sign-in and email accounts, tied to saves and multiplayer sessions. No passwords in your game.
Sessions this week
1,284
Analytics
See how people actually play
Sessions, playtime, and players, tracked automatically. No pipeline to wire, no dashboard to build.
Open your dashboard and watch the first play session land.
Made for prompting, not plumbing
Your coding agent can already build gameplay. Give it the SDK and ask for the rest.
// paste the brief, then prompt
import { sdk } from "./sdk"
sdk.init()
await sdk.auth.loginAsGuest()
await sdk.multiplayer.joinRoom("lobby")
Everything here is free
Build weird things. Test ideas fast. Share prototypes freely.
- Free SDK
- Free auth
- Free multiplayer
- Free save system
- Free analytics
- Free shareable URLs
No credit card · No backend setup
Questions, answered
The things game devs usually ask before adding the SDK.
Why is it free?+
We run a small game platform where people build mini games, and this SDK shares the same infrastructure those games already use. Since we're managing it anyway, sharing it with fellow game devs isn't going to break the bank.
Am I locked in?+
No. If you ever want to move, just reach out and ask for a migration — we'll help you get set up elsewhere in no time. We're also working on making migration self-serve in the future.
Why build on this?+
Because it keeps getting better. We're adding more features going forward that you can use not only to run your game, but to monetize it too — ads, selling custom skins directly to players, more advanced analytics, and more. Everything we build for our own platform, you benefit from as well.
Your AI can build the game. We help it ship.
Add auth, multiplayer, saves, analytics, and instant links — free.
Start free