Tribes: Vengeance is one of my favourite games. I've been meaning to try the other Tribes games but haven't got around to it. I played it as an FPS, but you can toggle to 3rd person and play how you want. The movement in this game is amazing, a combination of hovering with a jetpack and skating along the floor. The story is great, with a nice twist, and I found myself really connecting with some of the characters. It has great music. The gameplay is varied, with some very open outdoor levels to explore.