Alien Swarm is a game and Source SDK release from a group of talented designers at Valve who were hired from the Mod community. Available free of charge, the game thrusts players into an epic bug hunt featuring a unique blend of co-op play and squad-level tactics. With your friends, form a squad of four distinct IAF Marine classes.

Anamaton is a fast paced hotseat platform shooter for up to 4 players via splitscreen. The game offers fine gameplay and many different maps, weapons,vehicles to choose from.

Andromeda is an action space shooter. The player is piloting a space ship thats being assaulted by hordes of ever-increasing enemies. There are a variety of tools at the players disposal, like blasters, homing torpedos and an detachable energy pike. The objective is to kill as many enemies as possible before they overwhelm you. Be warn...

Building on 10 years of constant engine development, ARMA II boasts the most realistic combat environment in the world. It models real world ballistics & round deflection, materials penetration, features a realtime day/night cycle and dynamic wind, weather and environmental effects. The simulation of a combat environment is so effecti...

Arunderan is a 2D action adventure, featuring an amazingly big gameworld, riddles, traps, real time combat. The nimble Stan must free the town Arunderan from a curse that has changed all the citizens into sheep. Their bodies are trapped in soulstones, which are placed all over Arundistan. Destroy those soulstones to change the citiz...

Avalanche is an action game set in the Final Fantasy VII universe. The game features fast paced hack and slash gameplay played from a third person perspective. Most of the time you will be surrounded by enemies which you will defeat using your weapons and abilities.

Barrage is a rather destructive action game that puts you on a shooting range with the objective to hit as many dummy targets as possible within 3 minutes. You control a gun that may either fire small or large grenades at soldiers, jeeps and tanks. Targets are fast paced and require careful aiming as it takes half a second to reload th...

BJS is a funny arcade 3D multiplayer tank battle. It is fuly playable and very fun in multiplayer. Of course the single player is also possible. The game is running under Linux, Windows and hard core developers may make it running under MacOSX (means it is working but compilation process is not trivial). The goal of the game is just to cr...

Becherov is a car simulator that takes place in a virtual city. The player drives through the city in various cars and completes different tasks for Becherovka factory. The game resembles early Grand Theft Auto games, but here the player works for good. He raises up through the company hierarchy and ultimately becomes the director. Ci...

Blocktality is a top-down shooter in which the main character 'Sphero' is fighting against the cuboids for the freedom of his people. The game play involves fast-paced combat interspersed with interesting physics puzzles.

The name originates from "Battle Zone capture the Flag". It runs on Linux, BSD, Windows, Mac OS X, and many other platforms.

Champions Online: Free for All delivers furious, fast-paced encounters previously reserved for action and fighting games. No more boring auto attacks and lengthy recharge times. Champions Online: Free for All combat is instantaneous - and electrifying!

ColonyAssault is an action game in which you play as a marine commander sent to evacuate the colonists from a planet in danger by a natural disaster.Just another routine mission...

Browser Based Game Multiplayer

C9 is a 3D, fantasy based action MMORPG. Be a real hero with your precise control and show your various skill combo. Feel the adventure on Unrivaled Action RPG C9.

If you liked S.W.I.N.E. then you'll definitely enjoy Crazy Cows: Attack Of The Horny Big Breasted Mammals, a freeware action PC game where the player has to destroy the enemy cows. The game was under development for a year by a small and talented team of two Spanish guys, also responsible for Ballman Planets, and they created their own 3D...

In the Crimelife games, you explore a huge city, gunning down cops and pedestrians, carjacking, crashing and generally having fun with the freedom of the game.
You can call it a GTA clone. Pretty impressive work done in GameMaker 8.0 by a single guy.

DarkOrbit is an action-packed browser game. Enter your cockpit and discover new galaxies along with your friends, but beware of aggressive alien species that are always looking to take you down.

DDTank is a casual browser game where you and your friends get to control some anime-style characters and use a vast arsenal of weapons and strange objects to throw at your rivals. Theres no secret whatsoever to DDTanks gameplay, since its similar to that of the famous series Worms and of the free-to-play game Gunbound.

A deadly war rages on between 3 confederations. Take the plunge and face the dangers of the briny deep as a sub commander.