IGN has the word that a playable demo for Transformers: Fall of Cybertron will be hitting Xbox Live and PSn on July 31.

By the way, Activision recently pushed the release of the game from August 28 to August 21. The game is going to hit PC, Xbox 360 and PlayStation 3 platforms.

Check out the multiplayer debut trailer.

The game's voice cast has been revealed, which, of course, includes Peter Cullen and Gregg Berger are going to give their voices to key characters Optimus Prime and Grimlock.