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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.

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.

At first they came from the skies, and we repelled them with hired spaceships on a shoestring budget! Now they’re back, and they’re sending their ground troops to destroy our bases – thirty-ton monsters with glowing eyes and slavering jaws! And we still don’t have any money!

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.

It's Dead Space plus blunt weapons in post-apopoland (that's post-apocalyptic Poland, BTW). And there's a demo, too !

Guess what, this game has very little in common with the ones it wants to pass as a sequel of.
Chaos & Destruction is an arcadey racing game with minimalistic physics and where nitrous is not only used to overtake and ram opponents, it also heals your car. Tapping the additional invulnerability reserve will also prove useful to survive close encounters at 200 mph. The game features numerous vehicle classes, environments and game modes including silly "ragdoll olympics"-style challenges and 16-player MP.

Cloned corridor maps, minimal inventory management, enemies spawning in waves, and a plot that only seems interested in old ladies. Strangest non-sequel ever.