Sci-Fi

Mass Effect 3 is a Role-playing Game (RPG) / Third-Person Shooter hybrid set in a Science Fiction universe. Mass Effect 3 is the third game in the popular Mass Effect series, and is rumored to be the final installment. In it players continue the adventures of Commander Shepard utilizing extreme character customization which is the hallmark feature of the series. Additional features include: the ability to import decisions from both of the previous games into the new game, ownership/play of previous games not required, customizable weapons, improved mobility and melee combat, many returning characters (if they were not killed off in previous imported games), an improved cover system that allows for more action and more.

It's only a 2.5D side-scrolling platform shooter, but somehow Double D managed to capture the intensity and wackiness of the Serious Sam FPSs. Hordes of well-known monsters from the 3D games and new baddies of all sizes, power-ups, secrets, it has it all. And lo and behold, the Gun Stacker system lets you combine and use multiple weapons as one massively insane superkillertool.

A demo is available on Steam.

Fast multiplayer action set in the Half-Life 2 universe! HL2's physics adds a new dimension to deathmatch play. Play straight deathmatch or try Combine vs. Resistance teamplay. Toss a toilet at your friend today!

Winner of over 50 Game of the Year awards, Half-Life set new standards for action games when it was released in 1998. Half-Life: Source is a digitally remastered version of the critically acclaimed and best selling PC game, enhanced via Source technology to include physics simulation, enhanced effects, and more.

The Second Encounter starts where the previous game left off, with Sam travelling to Sirius on the "SSS Centerprise". Unfortunately the starship is accidentally hit by the "Croteam crate-bus" and plummets down to Earth's surface. As the starship falls, Sam reads the coordinates and frets about crash-landing into Egypt again, but instead he crashes into Central America in the Mayan age, with the starship now heavily damaged upon impact.

SpaceChem is an intriguing, "problem-solving centric" puzzle game by Zachtronics Industries that combines the logic of computer programming with the scientific domain of chemistry, set in an original science fiction universe. Players build machines using mechanics similar to visual programming that assemble and transform chemical compounds. Players later connect those machines together to form complex pipelines, and ultimately construct special pipelines to fight back against space-monsters that threaten humanity.

Killing Floor is a Co-op Survival Horror FPS set in the devastated cities and countryside of England after a series of cloning experiments for the military goes horribly wrong. You and your friends are members of the military dropped into these locations with a simple mission: Survive long enough to cleanse the area of the failed experiments!