Classic Robocode
The original Java platform for building and battling bots on a local computer.
Use a current Java Development Kit to run it.
Robocode
Build the best — destroy the rest!
Code a bot, put it in the arena, and improve it one battle at a time. Robocode is a programming game for learning, experimenting, and competing.
Latest classic Robocode version: 1.11.1 (Mon, 13 Jul 2026)
Robocode Tank Royale
The next generation of Robocode, built for local and networked battles.
Bot APIs are available for Python, Java and JVM languages, .NET, and TypeScript or JavaScript.Start learning
The Book of Robocode is the main learning guide for classic Robocode and Tank Royale.
- Getting started — learn the shared foundations and build a first bot.
- ReadMe — an overview of classic Robocode.
- Robocode API — the Bot API and Control API for classic Robocode.
- My First Robot — classic Robocode's Java tutorial for a first bot.
- FAQ — frequently asked questions about classic Robocode.
Tank Royale
Robocode Tank Royale is in its active 1.0 release line. It supports bots over WebSocket, so additional languages can be supported through the protocol.
- Tank Royale Docs — installation, first bot tutorials, and API reference.
- Tank Royale Battle Viewer — a web viewer for live matches and recordings.
Official online tournaments and a global ranking service for Tank Royale are not available yet.
Community and competition
- RoboWiki — the community knowledge base for classic Robocode.
- Robocode Google Group — questions, strategy, and code discussions.
- Robocode on Facebook — community updates and discussion.
- LiteRumble — the current incarnation of RoboRumble, with live classic Robocode rankings.
- RoboResearch — test a bot's performance in different challenges.
Project and support
- News — updates from the Robocode project.
- Robocode on GitHub — source code and releases.
- Versions — details about classic Robocode releases.
- Report an issue or request a feature — on GitHub.
- GitHub Issues — browse known issues and proposals.
- Old RoboWiki — the read only historical RoboWiki.