Activision has announced Transformers: Fall of Cybertron via the next Game Informer cover. According to the magazine, which will sport two different covers, Grimlock will be playable character and morph into his famed Dinobot form. The other cover shows Optimus Prime and Bumblebee. More on the game is revealed in the November issue, which is expected to land in mail boxes October 11. The game is out in 2012.