GamesRadar:
The arena shooter genre seemed doomed to remain a thing of the past. Some of our fondest FPS memories transpired in classic close-quarters shooters like Quake III Arena and Unreal Tournament, with their blazing-fast pace and adeptly designed maps. Nowadays, though, most shooters (save for a few criminally underplayed titles) seem less about speedily zooming around the map with the stack and more about camping in one spot until you’ve earned your game-ending killstreak.
One Angry Gamer "Now here’s a bit of news you probably didn’t see coming: Nadeo has announced that you can gain free access to their ManiaPlanet games right now, no strings attached. You download the free demo and for 48 hours straight you can play the ManiaPlanet titles for free."
Shootmania Platform, developed by Nadeo, will be free in its current beta form for the whole summer.
The Trackmania games rarely go on sale, so getting any and/or all of them is a recommendation.