Probably the deepest game that will come out this year on the 360 isn't going to be a shooter as some might have expected but a Role Playing Game.
Mass Effect comes from Bioware, the makers of Knights of the Old Republic I and II, Jade Empire, Baldur's Gate and Neverwinter Nights and it is going to trying to redefine what an epic game is supposed to be.
The gameplay is a mix of traditional RPG and squad based shooter coming together to create a team game that has you and your group traveling planet to planet on quets and missions.
One of the key things that Mass Effect is trying to revolutionize is deicision making. Games have tried in the past to make the player make moral decisions that effect what will happen as you go but Mass Effect isn't going to give you the simple choice of the good answer and the evil answer, but different shades of 'good' and 'bad' to the point that you are actually making natural decisions instead of artificially limited ones.
You will be launched int dozens upon dozens of quests and meet hundreds upon hundreds of characters on your way. The universe is the limit and it is a damn big universe, perhaps the biggest every presented in a game.
If this game delivers on what it is promising in depth, length, story, characters and action then it is sure to become one of the greatest games ever made.
Here are some screenshots to give you a flavor of what the game looks and feels like visually:


Thanks to Blacksaber for the sig!









Bioware are the best 