Tribes: Ascend (Hi-Rez Studios)
If your idea of a good time is strapping on a jetpack with a few friends and skiing downhill at 100 mph while plugging some poor n00b full of lead, then "Tribes: Ascend" is for you. The free-to-play multiplayer lets players choose from one of nine classes, each with specific armor and weapons. Teams will battle in Capture The Flag, Team Deathmatch, and Capture and Hold matches. Classes and upgrades can be unlocked by earning XP, but cold hard cash will make the process go by much faster.