Valve, creators of best-selling game franchises (such as Half-Life and Counter-Strike) and leading technologies (such as Steam and Source), today announced that outlets worldwide (retailers and Steam) are now accepting pre-order reservations for Portal 2, the epic sequel named the "Most Anticipated Game of 2011" at the Spike TV Video Game Awards.

Special pre-order offers vary at participating outlets around the world and include a variety of dollars off and/or exclusive in-game content for those who reserve the game for purchase before it is released the week of April 18. These include $5 off the full price, exclusive in-game skins for the coop bots (Atlas and P-body), and more. Check your favorite outlet for details.

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Available for the Playstation 3, Xbox 360, PC and Macintosh computers, Portal 2 is scheduled to ship worldwide the week of April 18, 2011. For more information, please visit www.thinkwithportals.com.

Aurora is an abstract, essentialized, and simplified real-time strategy game.

You have only one type of unit to command and only one type of order to give those units. You and your opponents start the game with equal resources. Quick reflexes will get you nowhere. The only path to victory is through clever strategy.

Aurora features a slow, floating feel and gorgeous minimalistic graphics. The entire world pulses to the rhythm of ambient music, and the player’s actions evoke sounds that smoothly coalesce into melody.

This game is meant to provide a relaxing, cerebral experience. Every action has its reaction, and every option has its costs. Aurora is a game in which your choices matter.