Experience the final explosive chapter in the Alien Breed series and uncover the horrifying truth surrounding the existence of the Breed. Launch discount good thru Nov. 24 10am PST.
Experience the explosive science fiction arcade-shooter that resurrects a much revered franchise in an epic single player and co-op multiplayer campaign.
Serious Sam HD: The Second Encounter is a visually upgraded and fully Steam supported remake of the original high-adrenaline single-play and 16-player co-operative arcade-action FPS and Gamespot's Game of the Month!
UFO: Extraterrestrials GOLD is a new GOLD edition which includes a number of changes and improvements giving a player a new look on the classic game: new maps, possibility to hire soldiers, globe UFO swarms and configurability.
Aliens Versus Predator Classic 2000 features the Colonial Marine, Alien and Predator Campaigns and the frenetic single-player Skirmish mode from the original title: Alien Versus Predator Gold Edition, which was released to massive acclaim in 2000.
...features the Colonial Marine, Alien and Predator Campaigns and the frenetic single-player Skirmis...
Very Positive
Sci-fiClassicAliensShooterRetroFPSActionHorror
Alien Shooter 2 -Reloaded is a large-scale sequel to the first part of Alien Shooter. This is the unique alloy of arcade action and RPG elements which combines well-established world of classical games and unmatched dynamics of the first part. Alien Shooter 2 - Reloaded is a modified version of the Alien Shooter 2 game.
Alien Shooter 2 -Reloaded is a large-scale sequel to the first part of Alien Shooter. This is the un...
Very Positive
ActionAliensShooterRPG
Only the Dead Survive. A massive deep-space mining ship goes dark after unearthing a strange artifact on a distant planet. Engineer Isaac Clarke embarks on the repair mission, only to uncover a nightmarish blood bath the ship's crew horribly slaughtered and infected by alien scourge.
From Single Cell to Galactic God, evolve your creature in a universe of your own creations. Play through Spore's five evolutionary stages: Cell, Creature, Tribe, Civilization, and Space. Each stage has its own unique style, challenges, and goals.
From Single Cell to Galactic God, evolve your creature in a universe of your own creations. Play thr...
Very Positive
God GameSci-fiSpaceStrategySandboxExplorationAdventureSimulation
Defense Grid: The Awakening is a unique spin on tower defense gameplay that will appeal to players of all skill levels. A horde of enemies is invading, and it's up to the player to stop them by strategically building fortification towers around their base.
Pulse-racing new installment from 2007's PC Game of the Year*: Play as Sergeant Sykes and experience a whole new side of the battle. A standard combat mission behind enemy lines becomes critical when you discover your enemies have captured something of vital importance to the ensuing war.
Adapt to Survive An epic story thrusts players into an ever-changing environment, forcing them to adapt their tactics and approach to conquer battlefields ranging from newly frozen jungle to zero-gravity alien environments. Suit up! A high-tech Nanosuit allows gamers to augment their abilities in real time on the battlefield.
Adapt to Survive An epic story thrusts players into an ever-changing environment, forcing the...
Very Positive
Sci-fiAliensShooterBenchmarkStealthFPSActionOpen World
You are in control of X-COM: an organization formed by the world's governments to fight the ever-increasing alien menace. Features: Command deadly close-combat battles Shooting down UFOs is just the beginning: you must then lead a squad of heavily-armed soldiers across different terrains as they investigate the UFO crash site.
There's something evil in the city tonight... Earth has been ravaged by human excess, petty conflict and alien invasion. The world's population has been herded into huge cities, the first of which was Mega Primus. 2084: A Utopia shattered, social collapse and civil unrest reigns in Mega Primus. Fiendish aliens terrorize the city.
The war continues... X-COM: UFO Defense brought you to a galactic battlefield. X-COM: Terror from the Deep brings the alien terror into a totally new dimension. Seeking to take advantage of a weakened Earth, X-COM's deep space foes unexpectedly change strategy and launch a powerful second front against planet Earth.
Shadowgrounds breathes fresh air into the action genre with explosive combat sequences, an innovative weapon upgrade system, and an intriguing storyline. The adrenaline-pumping, top-down gameplay and audiovisual fireworks set the scene for this new action experience which also includes single computer (split keyboard or joystick) co-op...
Originally planned as a section of the Highway 17 chapter of Half-Life 2, Lost Coast is a playable technology showcase that introduces High Dynamic Range lighting to the Source engine.
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.
Made by Gearbox Software and originally released in 2001 as an add-on to Half-Life, Blue Shift is a return to the Black Mesa Research Facility in which you play as Barney Calhoun, the security guard sidekick who helped Gordon out of so many sticky situations.
Return to the Black Mesa Research Facility as one of the military specialists assigned to eliminate Gordon Freeman. Experience an entirely new episode of single player action. Meet fierce alien opponents, and experiment with new weaponry. Named 'Game of the Year' by the Academy of Interactive Arts and Sciences.
Named Game of the Year by over 50 publications, Valve's debut title blends action and adventure with award-winning technology to create a frighteningly realistic world where players must think to survive. Also includes an exciting multiplayer mode that allows you to play against friends and enemies around the world.
The US President must save the Earth from alien overlord Zinyak using superpowers and strange weapons in the wildest open world game ever. Includes all available DLC!
The US President must save the Earth from alien overlord Zinyak using superpowers and strange weapon...
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FunnyCo-opShooterSandboxAdventureActionComedyOpen World
Sid Meier’s Civilization: Beyond Earth is a new science-fiction-themed entry into the award winning Civilization series. As part of an expedition sent to find a home beyond Earth, lead your people into a new frontier, explore and colonize an alien planet and create a new civilization in space.
Sid Meier’s Civilization: Beyond Earth is a new science-fiction-themed entry into the award wi...
Very Positive
Sci-fi4XSpaceAliensStrategyTurn-BasedFuturistic
Xenonauts is a strategy game in which you control a multi-national military organisation defending a Cold War-era Earth from alien invasion, using small squads of persistent soldiers to eliminate the extraterrestrials and recover their technology in turn-based ground combat.
Thousands of aliens, giant spiders, mutant lizards, and more are on the attack - can you survive the onslaught? Crimsonland is a top-down shooter with a touch of RPG. Unlock over 30 weapons and over 50 perks from quirky to brutal. Complete the quest and show your skills in five survival modes.
A 3D isometric, tactical strategy game with a rich and compelling sci fi story.
Mostly Positive
AliensTacticalSci-fiStrategy
Beware Planet Earth! is a beguiling mix of classic tower defense and time management coming to PC via Steam for the first time. Save your cows from the Martian invasion by building an effective defense using towers, traps and objects, and also by firing your Zapper directly at the invading force of little green men!
Beware Planet Earth! is a beguiling mix of classic tower defense and time management coming to PC vi...
Very Positive
Tower DefenseAliensStrategy
Command a team of 5 elite soldiers against an alien horde of 100,000. Surrounded on all sides, you must outmaneuver and outsmart the enemy. The enemy is closing in around you. Your soldiers are being flanked and the perimeter is slowly collapsing under a vicious alien assault. Robotic turrets will not last much longer.
Command a team of 5 elite soldiers against an alien horde of 100,000. Surrounded on all sides, you m...
Very Positive
Sci-fiTower DefenseStrategyRTSActionAliens
The story is situated on Mars. It starts where UFO: Aftermath left off and runs simultaneously with UFO: Aftershock. While the Laputans on Earth are fighting Wargots and Starghosts and finding out what caused the destruction of their home planet, a small colony on Mars is trying to survive and flourish.
The story is situated on Mars. It starts where UFO: Aftermath left off and runs simultaneously with...
Mixed
Sci-fiAliensMarsReal-Time with PauseStrategyTurn-BasedRPGTactical
Unleash a fury of powerful weapons as you blast your way through armies of Alien forces hell-bent on taking you down! Battle through 14 intense levels and prepare to face a barrage of beastly-sized bosses that will test your every skill. Each of your 10 weapons comes with two firing modes and you’ll need all of them!
Unleash a fury of powerful weapons as you blast your way through armies of Alien forces hell-bent on...
Mostly Positive
ActionAliensShooterSci-fiFPS
The US President must save the Earth from alien overlord Zinyak using an arsenal of superpowers and strange weapons in the wildest open world game ever. The epic conclusion to the game that changed all the rules!
The year is 1962 and the Cold War has the nation gripped by fear. A top-secret government unit called The Bureau begins investigating a series of mysterious attacks by an enemy more powerful than communism.
Discover the true meaning of fear in Alien: Isolation, a survival horror set in an atmosphere of constant dread and mortal danger. Fifteen years after the events of Alien™, Ellen Ripley’s daughter, Amanda enters a desperate battle for survival, on a mission to unravel the truth behind her mother's disappearance.
Sanctum 2 is the sequel to the world’s first Tower Defense/FPS hybrid game. Pick from four unique character classes and embark on a mission to protect the oxygen-producing Cores from hordes of deadly aliens who are threatened by their existence.
Surgeon Simulator 2013 is a darkly humorous over-the-top operation sim game where players become Nigel Burke, a would-be surgeon taking life into his own shaky hands, performing life-saving surgical maneuvers on passive patients.
Duke Nukem 3D: Megaton Edition is the definitive compilation of the landmark first-person shooter that includes enhanced versions of Duke Nukem 3D: Atomic Edition and three unique expansion packs as well as the original version of the classic game.