It's a game kind of like Bots by Acclaim. It's about this world were people called Crewgers control these animals called Crew, which have special powers. They were discovered by a scientist, who happened to have a Core (object were Crew come from when near a Claven Stone/s) in his pocket when he went by a Claven Stone he found. Then many people started discovering Crews. Finally, because people corrupt everything sooner or later, a group of people started abusing Crews and "using them for their own evil gain." So now, you have to combat the evil Crewgers, and stop a race of evil Crews called Kkoureuks. So, basically, you train to become a Crewger a summon crews to combat the guys. It's sttill in Beta, but it's pretty good.
http://tcrew.gamengame.com/