The the Mass Effect is a real treat for all those who enjoy the mix of RPG features with third-person shooting. Who played the second game in the series might find some differences. You have a smaller team to choose from and the RPG feature seems a little diminished. Otherwise, this game is a real gem.
The main idea of the game is to kill the Reapers and save the Earth and the entire galaxy with its races. You have many situations to deal with and many enemies to defeat.
Captain Shepard is a true hero ion the end and you have to help him upgrading his powers in achieving this goal.
I wish they'd done more games than this one.