BitCraft Online
A survival crafting MMORPG where players build towns and shape a shared, persistent world.
bitcraftonline.comCommunity
Move fast and
don’t break things.
Spacetime is the reactive backend platform that AI agents love. Database, server logic, auth, deployment, and real-time sync in one place.
Install Spacetime
curl -sSf https://install.spacetimedb.com | shInitialize your project
spacetime dev --template chat-react-tsTell the LLM to build it for you
claude "Build a multiplayer hide and seek game"Relational database
Define tables in code and store your application data with ACID transactions.
Server logic
Run application logic directly inside your database, with typed functions your clients can call.
Real-time sync
Keep subscribed clients up to date automatically as your data changes.
Auth
Identify connected users and control access through your application logic.
Type Safe API
One type system across your client, server, and database, generated from your schema.
Cloud deployment
Deploy your backend without managing servers, containers, or orchestration.
Deploying to
Cloud Service Provider
- 1Set up accounts/billing with a cloud provider
- 2Figure out cloud services for your use case
- 3Provision services and machines
- 4Configure a persistence layer/database
- 5Manage persistent state across deploys
- 6Become a Docker + Kubernetes wizard
- 7Configure networking policy
- 8Choose a performant web server technology
- 9Use an ORM or raw SQL to talk to your database
- 10Develop a protocol for client/.server state sync
- 11Hard-code persistence logic for in-memory state
- 12Design a bespoke permissions system
- 13And after all that you've still got atomicity, consistency, and isolation problems!
Deploying to
Spacetime
1
Write a Spacetime module
2
Run spacetime publish to deploy
3
Your app is ready for customers
Trusted by fast-growing companies around the world.
One backend.Everything in sync.
Reducer Functions
Clients call functions that run your server logic and update the database.
Tables
Store your app’s shared data, from chat messages to player positions.
Subscriptions
Clients subscribe to the data they need and receive updates automatically.
Millions of Transactions.Zero Bottlenecks.
Transactions Per Second
050,000100,000150,000200,000250,000300,000
Built with Spacetime.Discover what developers are building.
Developers are choosing Spacetime.And here’s what they’re saying.
Ok, Spacetime is actually pretty cool! It gives you almost everything you need on the server side to build a multiplayer game. Think of it as Supabase but for building games.
You can write reducers to handle events on the server, and you can call them directly from the client or subscribe to their changes.
Shayan@ImSh4yy
Spacetime — a database and server in one. Clients connect directly, run logic inside the DB. No Docker, no K8s, no ops bloat.
Used to power the entire backend of BitCraft, including real-time multiplayer.
Alvar Laigna@alvarlaigna
I couldn't resist! Heard about Spacetime yesterday and had to vibe code a flight simulator. One hour in, it's completely multiplayer with a Rust + Spacetime backend.
Shayan@ImSh4yy
Spacetime collapses your entire backend into the database itself. No servers, no microservices, just Rust modules running at memory speed. Powers an entire MMORPG with zero traditional infrastructure.
Mudit Juneja@being_mudit
It's time! I'm using Spacetime to backend my game, Vaerfel idle. It's an original idle mmorpg. We're almost at a point to where I'm comfortable asking for fundraising money for professional hooman-made art assets, etc.. Let me know what you think!
Marty McGlovin@MartyMcGlovin
love you spacetimedb ❤️
salt@saltjsx
Spacetime is a cheat code.
Ray Fernando@RayFernando1337
I did develop and operate a successful web3 marketplace with the full stack.. kubernetes, postgres, elastic search, risingwave, redis etc... imho for game dev go with @spacetimedb. Currently building an @PlayArtifact clone in godot and spacetimedb and its fun and painless
Code Crusader@CrusaderCode
For anyone who ever wanted to play with multiplayer try this platform out, its really amazing.
Dean McKee@oceddi
The design of Spacetime—or rather, its underlying mechanism—is so genius that I just can't stop grinning like an idiot, oh my.
とぴ。⎈🐧🦀@topi_banana
Unironically you can achieve this with a single rocket API and spacetimedb behind a loadbalancer.
wleddzig@wleddzig
we've been looking at it since launch, one of our developers loves you guys so much
Team Reagent@Reagent_Systems
If you don't know yet, Spacetime is here and it's going to warp the game dev space into a new big bang.
Think of it as whatever levelsio had to vibe code for his plane game to be a smooth multiplayer game, you can do it in an hour now.
Priyav K Kaneria@_diginova
We started concepting the game in July, and shipped it to the App Store before Halloween. 95% of the 3 month development time was spent developing the front-end client.
The backend was completely plug-and-play. It's genuinely shocking how easy Spacetime made it to create a persistent open world.
Ryan Murphy@LightfoxGames
Supporters
Some of our investors
Founder of Roblox
Founder of Unity
CEO of CCP Games
Ex VP Publishing Microsoft
Production-ready on
day one.
Spacetime is the reactive backend platform that AI agents love. Database, server logic, auth, deployment, and real-time sync in one place.
Start building