Valve Unleashes An Alien Swarm On Steam

The Alien Swarm Unreal Tournament 2004 mod becomes a full, Source-powered four-player co-op tactics game, available for free on Steam this Monday, courtesy of the nice folks at Valve.

Valve hired on the team responsible for Alien Swarm two years ago. Since then, they've been busy working on the Left 4 Dead series and now Portal 2, but they've managed to squeeze out a little extra time to update Alien Swarm as a full Source release.

Alien Swarm is a top-down four-player shooter, similar to arcade games of old. Players one of eight unique characters with four different classes, and battle their way through hordes of aliens using more than 40 different types of weapons and equi9pment. Players will gain levels as they play, unlocking persistent items along the way.

Not only is Valve releasing the game for free on Monday, it's releasing the game's entire code base and modding tools as well. With a simple, tile-based map editor, modders should have a field day with Alien Swarm.

Look for it on Steam come Monday!


    Don't cross the streams!

    Looks amazing. Can't wait to play it. Will we need UT 04 to play it?

      ...becomes a full, Source-powered...

      No, only a Source game (IIRC).

    its running on Source so no.. its not a UT2004 mod any more

    they say its free.. but not sure if it comes with a free source SDK.. which usually is required to play these 'free mods"..

    have to wait n c. but it looks hot

      It's listed as a game, not a mod, so it shouldn't need to own a source game to play it, however, since they're saying they're releasing it's source it tools, you'll probably get the source sdk with it anyway.

    It looks like a birds-eye shooter....
    PLEASE let it be! We haven't had a decent one since BaboViolent2, and support for that has long since diminished... a sad way to go for an excellent game.

    Damn, that looks awesome

    Next weekends Kotaku Play together, yes?

    I have been waiting four years for this game. Check out the original UT2004 mod at their website... One of the best games of all time for me (and always will be).

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