CSM - OUTERNAUTS owes a lot to Pokemon in terms of its gameplay mechanics. As a member of an interplanetary monster-collecting organization, you'll hop through space systems capturing creatures for your team and training them to battle other odd monsters. As the creatures go up in level, they evolve physically, going from cute cuddly critters to large scary beasts. There's also a sim aspect to the game, in that you can buy items to decorate your homeworld before inviting Facebook friends over for a visit.
GameSpot - Unfortunately, the current player count cannot keep up with the ongoing server costs.
Having already shut down the Facebook version of Outernauts, Ratchet & Clank developer Insomniac Games today announced that it's also closing the game's iOS and Android versions.
With so many people getting involved in games like Farmville 2 and SimCity Social and higher quality titles like PixelJunk Monsters, Outernauts and You Don't Know Jack showing up, the stigma that used to surround Facebook gamers is starting to face.
Interview with Rowan Belden-Clifford an Associate Designer on Outernauts.