☭ OpenRA is an open-source reimplementation of Westwood’s Command & Conquer: Red Alert game engine, updated to use the hardware acceleration of modern video cards using OpenGL and cross-platform positional sound built upon OpenAL. It runs on Windows, Linux and Mac OS X. Feel free to improve upon OpenRA. The development process is public and open to everyone. We are happy to include your patches after a code review.

• FAQ
• Installation
• Controls
• Settings

• Serverbrowser — List of current OpenRA games
• Master Server Stats — Player activity graphs
• Live Server Map — Where are currently online servers hosted?
• OpenRA – Resources — Exchange units, maps and replays
• IRC: #openra on freenode (webchat, logs)
• Forums — Bulletin Board

• Ohloh Code Metrics
• Travis CI Build Status
• Pingdom Uptime and Latency Measurement:
  • Webserver
  • Master Server

• Playing the game – Learn the basics of gameplay
• Making maps guide — Learn how to make maps with easy and advanced settings
• Modding Guide — Learn how to make additional mods for the game, beyond RA and C&C
• Dedicated — Instructions on how to run a Dedicated OpenRA server
• Audio guide — How to edit, convert to aud and implement it on maps, units, and mods
• Pixelart — 3D models to sprite tutorials and other fileformat conversions

• Compiling — How to setup your development environment
• Hacking — Understand the organisation of the source code
• Branches and Releases — Patch review guidelines and release checklist
• License — Legal blurb about Free/Libre Open Source Software
• Sequences Introduction and Initialization — How to define sprite animation sequences
• Palettes and Remaps — How player colors are applied to sprites
• Traits — Documentation of the available YAML rules
• Map scripting — How to write mission scripts in Lua
• Veterancy — How the unit promotion system works
• Coding Standard — please follow those when contributing patches
• Playtest or Release Checklist — how to fire up the build server and quality assurance
• Hacky AI — Thoughts on OpenRA’s AI and where to go next with it.
• Reverse Engineering — Documentation on Westwood game files
• Translation — Localisation
• Glossary — Abbreviations and developer slang explained