Scheduled for a March 6, 2012 release, the game will mark the third and final chapter in the "Mass Effect" trilogy of video games.
"Mass Effect 3" continues from events established in previous "Mass Effect" video games, following 'Commander Shepard' who tries to save the galaxy from the 'Reapers'.
Shepard rallys alien civilizations together, while defending himself against 'Cerberus'.
Unlike "Mass Effect 2", Shepard will start the game with powers, with the 'character creator' offering more features.
Two love interests will also look for Shepard's attention in "Mass Effect 3", with a 'love triangle' to be graphically resolved by the end of the game.
Locations include the main homeworld 'Sur'Kesh', the 'Asari' homeworld 'Thessia', the 'Turian' homeworld 'Palaven', the 'Quarian' homeworld 'Rannoch', a human mining base located in a Martian crater and a giant metropolis on Earth.
Players will also be able to return to 'Tuchanka', the 'Krogan' homeworld.
Characters in the game include 'Illusive Man', 'Garrus Vakarian', 'Liara T'Soni', 'Kaidan Alenko', 'Ashley Williams', 'Legion', 'Tali'Zorah', 'Urdnot Wrex', 'Jack', 'Mordin Solus', 'Ambassador Udina', 'Captain Anderson', 'Zaeed Massani', 'Kelly Chambers', 'Thane Krios', 'Jacob Taylor', 'Miranda Lawson' and 'James Vega'.
Click the images to enlarge and Sneak Peek "Mass Effect 3"...