Screeps: Arena is an online asynchronous PvP game where your script fights other players' scripts autonomously in a 1v1 match-based arena environment.

Mix of strategy and coding

The game features all the strategic depth you expect from a classic RTS, including gathering resources, base building, and creating units. But there's a revolutionary twist: you don't control your units directly. Instead, you play by writing a full-fledged JavaScript that runs on the game servers, autonomously executing your grand strategy.

Easy to learn, hard to master

Only basic programming skills are required to start, but it provides a deep, complex game environment where pro coders can push their skills to the absolute limit. While JavaScript is native, you can use community-supported packages for TypeScript, Python, Rust, C#, Kotlin, the list is growing (see in Steam guides).

A 24/7 competitive arena

Your code will battle other players' scripts in a series of short, fast-paced 1v1 matchups. The system automatically matches you with equal opponents based on your arena rating. Best of all, you can find an evenly matched game instantly, 24/7. Even if no other players are online, the system will use their saved code to provide you with a constant challenge.

Endless challenges

Discover different "arenas"—unique multiplayer game modes, each with its own rule set and strategic goals. To keep the competition fresh, we introduce new arenas every season, forcing you to adapt and write new code for different challenges. Earn daily fame, gain resources, and craft items to unlock more content, or play with friends and design your own private challenges.