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Although Garry's Mod is usually considered to be a full game, it has no game objective and players can use the game's set of tools for any purpose. Garry's Mod allows players to manipulate "props" – various objects that players can place in-game. Props can be selected from any installed Source engine game or from a community created collection. The game features two "guns" – Physics Gun and Tool Gun for manipulating objects. The Physics Gun allows objects to be picked up, adjusted and frozen in place.

Black Ops is a first-person shooter, retaining the same gameplay mechanics as previous Call of Duty titles. The player assumes the role of a foot soldier who can wield various firearms (only two of which can be carried at once), throw grenades and other explosives, and use other equipment as weapons. A player close enough to an enemy can kill with one knife blow. A character can take three stances: standing, crouching or prone. Each affects rate of movement, accuracy, and stealth.

Massacre meets machismo in this third-person co-op survival shooter. Repel demonic hordes with firearms, melee and hand-to-hand moves in various solo and multiplayer modes over eight open maps plus an Inferno boss stage. And for a change of pace, why not play as a trap-setting, minion-spawning demon yourself ?

Frozen Synapse is the ultimate tactical game on PC and Mac.

It brings the simultaneous turn-based strategy genre bang up-to-date and lets you give detailed, accurate orders to your squad: classic gameplay with a modern interface. Plan your moves, test them out, then hit the "Prime" button: both you and your enemy's turns are executed simultaneously. Competitive-but-intuitive multiplayer and a huge single player campaign mean that Frozen Synapse will give you hours and hours of tactical delight.

From the twisted puzzle minds behind the award winning Toki Tori comes a new game, simply called RUSH.

Fortunately for fans of high quality puzzle games, RUSH is anything but simple. In the game’s fully three dimensional levels, players need to guide cubes to color coded exit points using Conveyor belts, Warps, Stops Signs, Splits and more!

The game can be easily controlled with just the mouse, allowing your brain to fully focus on the solutions!

In Magicka, up to four players take on a grand adventure to save their world from certain doom using a fully dynamic spell system. The adventure mode takes the players across three different levels, ranging from the lush forests of mountain valleys to the frozen halls of the Mountain King where wits and creative thinking are the keys to victory.

Nimbus is a unique combination of racing & puzzling. The player controls a craft with no means of directly propelling itself and needs to use whatever is scattered around the levels to acquire thrust and reach the goal. Traverse a world map with several distinct islands in order to recover your lost love. Light on story, but heavy on gameplay Nimbus offers several hours of increasingly harder challenges.

It's like breaking in a tropical aquarium screensaver with a speargun in hand. Take a deep breath, aim, shoot and reel'em in. Misleading title should be Shallow Water Spearfishing, unless players are actually enticed to hunt for depth in what looks at first glance like a pretty unambitious game ?

Alien Swarm is a free 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.