Halo, along with Call of Duty, basically shaped the entire FPS industry of today. Metroid Prime was a great game, but it really kind of stands alone. I canít think of ANY FPS games that really play like it.
actually I think Tribes was really revolutionary just not that known. Players need to understand that something being popular to players doesn't make it revolutionary. It is revolutionary when the devs like it and copy it. Alot of Halo vehicle combat resembles what was found in Tribes. Halo gets credit for it though because Tribes was a PC game and most people who would go to Halo first are console only people. Tribes also invented loadouts and classes.