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OpenRA / OpenRA

git clone https://github.com/OpenRA/OpenRA.git release-20250330 · 1y ago 🔥 on GitHub Trending today

Open-source real-time strategy engine that runs early Westwood classics like Command & Conquer: Red Alert on modern systems.

Why you might care

Lets you play or mod Red Alert, Tiberian Dawn, and Dune 2000 on Windows, Linux, BSD, and macOS, with multiplayer and YAML-based rules for custom mods and maps. Written in C# with SDL and OpenGL under GPL-3.0; EA does not endorse or support it.

Categories

Alternatives

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18k
★ total · +0% this week
3.1k
forks · 1.6k open issues

Star history (as recorded here)

2026-10-20 · 17,608 ★ 2026-10-22 · 17,622 ★
LanguageC#
LicenseGPL-3.0
Created2010-10-04 (16y ago)
Last push2d ago
Watchers380
OwnerOrganization

Seen on GitHub Trending

  • 2026-10-22 — #8 monthly in c# · +237 ★
  • 2026-10-21 — #8 monthly in c# · +232 ★
  • 2026-10-20 — #8 monthly in c# · +230 ★

GitHub topics

Links

README excerpt
# OpenRA
A Libre/Free Real Time Strategy game engine supporting early Westwood classics.
* Website: https://www.openra.net
* Chat: #openra on Libera (web) or Discord 
* Repository: https://github.com/OpenRA/OpenRA 
Please read the FAQ in our Wiki and report problems at https://github.com/OpenRA/OpenRA/issues.
Join the Forum for discussion.
## Play
Distributed mods include a reimagining of
* Command & Conquer: Red Alert
* Command & Conquer: Tiberian Dawn
* Dune 2000
EA has not endorsed and does not support this product.
Check our Playing the Game Guide to win multiplayer matches.
## Contribute
* Please read INSTALL.md and Compiling on how to set up an OpenRA development environment.
* See Hacking for a (now very outdated) overview of the engine.
* Read and follow our Code of Conduct.
* To get your patches merged, please adhere to the Contributing guidelines.
## Mapping
* We offer a Mapping Tutorial as you can change gameplay drastically with custom rules.
* For scripted mission have a look at the Lua API.
* If you want to share your maps with the community, upload them at the OpenRA Resource Center.
## Modding
* Download a copy of the OpenRA Mod SDK to start your own mod.
* Check the Modding Guide to create your own classic RTS.
* There exists an auto-generated Trait documentation to get started with yaml files.
* Some hints on how to create new OpenRA compatible Pixelart.
* Upload total conversions at our Mod DB profile.
## Support
* Sponsor a mirror server if you have some bandwidth to spare.
* You can immediately set up a Dedicated Game Server.
## License
Copyright (c) OpenRA Developers and Contributors
This file is part of OpenRA, which is free software. It is made
available to you under the terms of the GNU General Public License
as published by the Free Software Foundation, either version 3 of
the License, or (at your option) any later version. For more
information, see COPYING.
# Sponsors
Free code signing on Windows provided by SignPath.io, certificate by SignPath Foundation.

Blurb generated by claude-haiku-5-5 1d ago. Star deltas marked ~ are extrapolated from partial history.