OpenRA (Red Alert, Tiberian Dawn and Dune 2000 engine)

This site is not affiliated with OpenRA or Electronic Arts. We do not host any files and only link the project’s official pages.

What it is

Red Alert came out for MS-DOS and Windows in 1996. Its engine, like the one in the first Command & Conquer (Tiberian Dawn), does not run well on modern systems without patches. OpenRA is a new engine written from scratch in C# that reads the original games’ graphics, sounds and maps and plays them with modern code.

The project calls itself “a Libre/Free Real Time Strategy game engine supporting early Westwood classics” (OpenRA README). Its FAQ explains that it is a clean-room reimplementation, made by studying the game files “without any disassembling, DLL injections or binary patches of the original executables” (OpenRA FAQ). The repository was created in October 2010 and is still updated every week.

Three games ship as built-in mods: Red Alert, Tiberian Dawn and Dune 2000. The README notes that EA has not endorsed and does not support it.

Current status

• Status: Working, actively developed. The last push to the repository was on 28 October 2026.
• Stable release: release-20250330, 30 March 2025. The download page recommends it for online play.
• Playtest: playtest-20261026, 25 October 2026, with Windows (x64 and Arm64 installers and portable zips), a macOS disk image and Linux AppImages for each mod.
• Platforms: Windows 7 or later, macOS and Linux. FreeBSD and other systems can build it from source.
• Mobile: no official Android or iPhone build.

What you need

• A computer that supports DirectX 11 or OpenGL 3+ (the download page’s minimum).
• The original game files, which OpenRA fetches for you. The download page says each mod prompts you “to download or copy them the first time you run a mod”. Because EA released Red Alert and Tiberian Dawn as freeware, OpenRA mirrors a stripped-down set of about 15 MB of the files it needs. You can also point it at your own discs, a digital copy, or the C&C Remastered Collection. These files are used under EA’s C&C modding guidelines and are not covered by OpenRA’s own licence.

You do not need an original copy for the Red Alert or Tiberian Dawn mods. The Game Content wiki page lists where each mod can get its files, including Dune 2000.

How setup works (overview)

Online matches need everyone on the same version, so pick release unless you want to help test new features.

How it differs from the original

OpenRA is a remake, not a patch. Expect the same factions, units and look, with changes made for modern multiplayer:

• Controls: attack-move, unit queues, control groups and other modern RTS conveniences.
• Balance: units and costs are tuned by the community for competitive play, so numbers differ from 1996.
• Higher resolutions: any window size, with zoom.
• Online play: a built-in server browser, replays and spectator mode, plus dedicated server support.
• Modding: maps and missions are written in YAML and Lua, with a Mod SDK for total conversions. Maps are shared on the OpenRA Resource Center.

If you want the original 1996 rules exactly, the official Remastered Collection or the original game is closer. If you want to play Red Alert online today, OpenRA has the most active player base.

Other ways to play Red Alert

Electronic Arts released the source code of Red Alert under the GPL in 2020. A fan project, ra-port, uses that code to run the original game natively on macOS, Linux, Android and iOS. Its README lists working campaigns, skirmish and videos, but no online multiplayer yet, and there are no ready-made downloads: you build it yourself and supply files from your own discs. The full list of versions is above this guide.

Common problems

The OpenRA FAQ covers the frequent ones:

• Crash with an OpenGL error mentioning glPushAttrib: an overlay such as Discord or RivaTuner is injecting old OpenGL calls. Turn the overlay off for OpenRA.
• “No supported OpenGL profiles were found” on an old graphics card: start once with Graphics.DisableLegacyGL=False on the command line.
• Linux window not responding: set the environment variable GALLIUM_THREAD=0 before launching.
• Crash logs are in %APPDATA%\OpenRA\Logs\ on Windows, ~/Library/Application Support/OpenRA/Logs/ on Mac and ~/.config/openra/Logs on Linux.

Unofficial. This page is written by an independent directory. It is not made by, endorsed by or affiliated with Westwood Studios / Virgin Interactive (now Electronic Arts) or OpenRA developers (OpenRA (Red Alert, Tiberian Dawn and Dune 2000 engine)'s author). We do not host any files, and we never link to game files, ROMs or ISOs.