OpenRA: Open-source RTS game engine for games such as Command and Conquer

OpenRA: Open-source RTS Game engine for games such as Command and Conquer

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A Libre/Free Real Time Strategy Game engine supporting early Westwood classics.

Please read the FAQ in our Wiki and report problems at

Join the Forum for discussion.


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.



Please read 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See Hacking for a (now very outdated) overview of the engine.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.


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.



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.


Sponsor a mirror server if you have some bandwidth to spare.
You can immediately set Up a Dedicated Game Server.


Copyright 2007-2021 The OpenRA Developers (see AUTHORS)
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.

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