Open RA website
Ever miss the good old days of Command and Conquer, and Red Alert 1? The team over at OpenRA have created a real time strategy engine, which currently has mods for both titles mentioned.
OpenRA is still in alpha, meaning the occasional crash, and a few sound glitches. But if your looking for some quality multiplayer RTS action, OpenRA has you covered. Only mutliplayer is supported so Bring your A-game!
Here is a quick video preview of the action: