Spore Galactic Adventures Beams Down to Retailers Worldwide This Week announces the Spore expansion pack is now on store shelves in North America, with an international release planned for Thursday. Here's a bit on the add-on, and the bonus content for it designed by the creators of Robot Chicken:

Expanding on the original Spore game, Spore Galactic Adventures adds variety and fun by allowing players to get out of their spaceship and explore colorful, wacky new planets. Players will turn their creatures into space captains, battle epic monsters in intergalactic arenas and fight intense planet-side races. In each mission, players earn experience to rank up their captain and earn game-changing items such as the Plasma Pulser and Swarm Magnet. In the box, the game includes 16 off-the-wall missions as well as an “Adventure Creator” tool that players can use to design their own missions. These personally-created missions can be shared with friends online and can be classed in leaderboards that track accomplishments, rank and medals earned.

In addition to the adventures in the box, players can download ten all-new adventures created by the writers of the outrageously funny, pop-culture parody TV show, Robot Chicken. Available for free to all Spore Galactic Adventures owners, the Robot Chicken adventures take players through such wacky quests as a mission to obtain a library card by finding a ruler-yielding librarian her true love, and an adventure to save a princess by battling demonic snowmen in a snowglobe. Conceptualized by Robot Chicken co-creators Seth Green and Matt Senreich, the Robot Chicken Adventures were imagined by the show’s writing team including Matt Beans, Doug Goldstein, Mike Fasolo, Breckin Meyer, Dan Milano, Tom Root, Kevin Shinick, Hugh Sterbakov and Zeb Wells. With such a unique cast of imaginative characters, players can expect to experience missions with exploding poo, angry yetis, and banana wars.