Shooter

Savage 2: A Tortured Soul is a fast paced multiplayer action title with FPS, RTS & RPG elements.

Soldat is a unique side-view multiplayer action game.

World of Padman: An awesome shooter based on comic strip characters first introduced in the (now out of print) playstation mag "PSX".

Starsiege: 2845 is a FPS set in the futuristic Earthsiege/Tribes universe.

Once Upon A Time: If you've ever rooted for the Wolf in Little Red Riding Hood, this game is for you.

Toblo is a free, fast-paced capture the flag game that has two teams using blocks as weapons, throwing bombs, and generally destroying things.

Babylon 5: I’ve Found Her is a freeware space combat sim.

Red Orchestra: Ostfront 41-45 Fight in the theatre of war that changed the world forever.

Nuclear Dawn is a FPS/RTS multiplayer only Modification for Valve's Source Engine.

Alien Swarm is a total conversion for Unreal Tournament 2004.