Tribes is an awesome trilogy. I prefer the first for its mods, the second for its multiplayer, and the third for its single player. All are deities among the common rabble of other games. Tribes is one of the longest running game franchises, and really deserves a sequel, though Garage Games is working on that. Seriously, though, Tribes is awesome. All three of them. Vengeance got quite a bit of trouble for its deficient multiplayer, but the singleplayer is enjoyable. Tribes 1 has so many mods I can't list all the ones I've played (primarily Renegades and TRPG). Seriously, the first two Tribes are free, and Vengeance can be found on some store shelves. Go get them.

Five @'s.