CosmicKube

Inspiration

Conway's game of life, Infinite Crafter, and Agar.io and Club Penguin (all the classics)

What it does

An extensible, free-for-all sandbox playground, where players work together to build the universe! You are a player on a blank canvas. Work together with other players to create new blocks from existing ones. New discoveries are generated by ChatGPT, so the game can go on forever!

How we built it

With bloody, toil, sweat and tears. We wrote a Rust backend to talk to the Godot frontend over Websockets and used a Go caching server to reduce our already sizable OpenAI bill. The software is deployed on a self hosted Kubernetes cluster and uses a Postgres database for persistence. Nginx and Azure static web apps are used for load balancing and static serving.

This has been built with extensibility in mind from the start. If the server runs out of memory we can start another cluster. All OpenAI requests (and DALL-e requests for textures) are cached, so that the more people play the game, the bigger it gets. This also allows for fast results, and a consistent gameplay experience.

Challenges we ran into

• Danny had a typo in his API key. It took 3 hours to debug!
• We had to do some hacky fixes

Accomplishments that we're proud of

Performant architecture, ready to scale as new players join. A unique and creative gameplay loop.

What we learned

Netcode is hard :( Games are hard :( Everyone wants to rate limit us.

What's next for CosmicKube

Scale it to the moon. More Kubernetes!!

Built With

• docker
• go
• godot
• jenkins
• kubernetes
• nginx
• openai
• postgresql
• rust