Robocode 1.11.0 released

Version 1.11.0 (06-Jun-2026)

Changes

• Installer overhaul: Refactored the monolithic AutoExtract installer (844 lines) into 5 focused classes (Installer, InstallerDialog, Extractor, ShortcutManager, OsUtil).
• Reduced confirmation dialogs from 5 user prompts down to 1 — a single "Install to" dialog with Proceed/Cancel.
• Removed license agreement dialog, start-menu shortcut prompt, and Windows file associations prompt.
• Removed Windows .battle/.br file association registration (rarely used, required admin privileges).
• Removed legacy code: Win 9x/ME command.com path, obsolete .robotcache migration, fragile self-cleanup hacks.
• Windows shortcuts are now always created without prompting.
• Improved code quality: try-with-resources, StringBuilder, proper error handling, fixed spinner animation bug.

Bugfix

• #89: Prevent a single fire command from spawning duplicate bullets with the same ID
  • A single setFire() call could spawn multiple bullets sharing the same bullet ID, which could cause issues with bullet tracking and battle accuracy.
  • Thanks go to Pavel Savara for fixing this ❤️. Sharp-eyed fix!

Download Robocode 1.11.0 from here

Battle Runner released for Robocode Tank Royale 0.37.0

I have just made a new release of Robocode Tank Royale 0.37.0, which contains the new Battle Runner 🎉 https://robocode.dev/api/battle-runner

The Battle Runner API lets you run Robocode Tank Royale battles programmatically from any JVM application — no GUI required. Use it for automated testing, benchmarking, tournament systems, or any scenario where you need headless battle execution.

Tank Royale Viewer

🖥️ Visualize Robocode battles in style!

Check out the Tank Royale Viewer by Jan Durovec – an amazing web-based viewer for watching Robocode Tank Royale matches in real-time! 🚀

Perfect for tournaments, analyzing strategies, and displaying battles on big screens! ⚡

👉 https://github.com/jandurovec/tank-royale-viewer

📚 Introducing: The Book of Robocode 🤖

The Robocode community now has a comprehensive guide for mastering bot programming!

The Book of Robocode is a free, open-source resource covering everything from your first bot to advanced competitive strategies.

🎯 What's Inside

• Step-by-step tutorials for beginners
• Movement strategies (circular, wave surfing, and more)
• Targeting techniques (linear, circular, pattern matching)
• Radar and energy management
• Real code examples for both Robocode and Robocode Tank Royale

🔗 Links

🌐 Read it online: book.robocode.dev

💻 GitHub: robocode-dev/book-of-robocode

✨ Features

• 📖 Progressive learning path from novice to expert
• 🔬 Math and are physics explained clearly
• 🏆 Competition-ready strategies
• 🤝 Built on 20+ years of RoboWiki knowledge

Whether you're writing your first bot or aiming for the top of the RoboRumble rankings, this book has something for you!

Contributions welcome — open an issue or PR if you'd like to help expand the content. 🚀

Happy robocoding! 🎮