http://www.xonotic.org/A Deathmatch FPS, like Quake or Unreal Tournament. They seem to be picking up in popularity again and I'm glad for that. Anywho this one is amazing. If you've ever had a good time with such a game, TRY THIS ONE. YOU WILL NOT REGRET IT
This game is an amalgamation of all the best things from this genre. It has bunnyhopping, circle jumping, air strafing, rocket jumping, the controls are super responsive and the whole thing is slick and handles like a dream. Additionally, the customizability is THROUGH THE ROOF. What other game have you played with an in-game HUD-editor? How about one that lets you edit your HUD in realtime in the middle of a match? huh? S'WHAT I THOUGHT. FOV is uncapped, the graphical auto-optimzation is the best I've ever seen, you can play in third person, you can change EVERYTHING. This game is everything that is right with PC gaming and somehow leaves behind all the wrong. I've yet to see a single error message and it's quite well optimized.
I honestly think that if enough people get into this game, and the weapons are tweaked more (after all, it's still in development), this game may well stand alongside Quake 3 CPMA for fast-paced, high-skilled FPS action. I may sound like a living commercial right now but that's just because I absolutely love this game.
Also it has integrated hookmod
as in not a mod
integrated
Xonotic.
http://www.xonotic.org/