1) Halo: Combat Evolved

Developer: Bungie Studios
Publisher: Microsoft Game Studios
Year Released: 2001

2) Halo 2

Developer: Bungie
Publisher: Microsoft
Year Released: 2004

3) Tom Clancy’s Splinter Cell Chaos Theory

Developer: Ubisoft Montreal
Publisher: Ubisoft
Year Released: 2005

4) Star Wars: Knights of the Old Republic

Developer: BioWare
Publisher: Microsoft
Year Released: 2003

5) Jade Empire

Developer: BioWare
Publisher: Microsoft
Year Released: 2005