In addition to updating the retro game Aliens Vs Predator Classic 2000, Steam has just given folks a chance to pre-order the new Aliens Vs Predator game from developer Rebellion and publisher Sega. However there's a nice bonus when you get the game from Steam. You will also get a free older game from Sega, Universe at War: Earth Assault.

This 2007 released sci-fi RTS game comes from developer Petroglyph and is one of the very few PC games that allows for cross-platform multiplayer gaming with its Xbox 360 counterpart with Games For Windows Live. Petroglyph is currently working on the upcoming free-to-play game Mytheon.