If the name Alien Swarm sounds familiar to you, that is because there was a fairly popular mod of the same name for Unreal Tournament. Apparently, while no one was looking, Valve quietly hired the team behind the mod – Black Cat Games.
For the past two years, they have been working on major Valve projects like Left 4 Dead and Portal 2. However, at the same time, they also continued working on their pet project, a sequel to their original claim to fame.
The new Alien Swarm runs on Valve’s Source engine and will be made available tomorrow for free. The game is a top-down shoot-em-up, which supports up to 4-player co-op mode. Alien Swarm will also have four unique classes of characters, each with its own unique strengths and weaknesses. Like in the original game, the player will be tasked with killing waves of aliens.
Modders will be pleased to know that Valve will release the full game code, in addition to releasing the SDK. Head over to the official website for more screenshots and trailers.
Hat tip: Rock, Paper, Shotgun