Games like Half-Life: Source on Steam
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The Darkness II
An intense first person shooter that delivers a twisted and gripping narrative of tragedy, modern crime drama, and supernatural horror.
Far Cry® 4
Hidden in the towering Himalayas lies Kyrat, a country steeped in tradition and violence. You are Ajay Ghale. Traveling to Kyrat to fulfill your mother’s dying wish, you find yourself caught up in a civil war to overthrow the oppressive regime of dictator Pagan Min.
Tom Clancy’s Rainbow Six® Extraction
Tom Clancy's Rainbow Six® Extraction is a tactical, co-op, PvE first-person shooter where you and your squad face an evolving alien threat. Teamwork, tactics, and flawless execution are key to your survival.
Mass Effect™ 3 N7 Digital Deluxe Edition (2012)
Earth is burning. The Reapers have taken over and other civilizations are falling like dominoes. Lead the final fight to save humanity and take back Earth from these terrifying machines, Commander Shepard.
Earthfall
NOW AVAILABLE! When the Earth falls to an extra-terrestrial invasion, humanity becomes an endangered species. Earthfall is a four-player cooperative shooter that challenges players to survive hordes of ruthless alien drones and their inscrutable masters.
Chasm: The Rift
Prepare for terror in this ground-breaking classic old-school FPS. Following the destruction of Time you are left to battle in this horrific hellhole of multilevel interconnected missions populated by gruesome grotesque creatures.
Silver
Silver, a corrupt and sinister sorcerer, rules the land of Jarrah with an iron fist. He and his henchmen have abducted the village women as part of a pact with the almighty god, Apocalypse. Now, only one man can put a stop to Silver and his minions. That man is you, David, a promising young knight whose wife is among the captured.
Halo: Spartan Assault
Halo: Spartan Assault brings the excitement of Halo combat to Steam for the very first time. Battle your way through 30 action-packed missions against the Covenant as you explore the origin of the Spartan Ops program featured in Halo 4. *DirectX feature level 10 required. *
Painkiller Overdose
The critically-acclaimed and award-winning FPS franchise is back! Packed with tons of fast-paced, adrenaline-fueled single player and multiplayer action, Painkiller Overdose brings with it 6 innovative new demonic weapons, mind-bending physics, lightning-player maps, over 40 demented and sickly-twisted monsters from Hell and gigantic end...
THE GREAT GEOMETRIC MULTIVERSE TOUR
LIBERATE THE GEOMETRIC PEOPLE AND SAVE THE MULTIVERSE! Fight through the randomly chosen universes of the Geometric Multiverse, arming yourself to the teeth with insane weaponry and mutating your mind, body, and soul with the unrelenting power of genetically altering pills.
F.E.A.R. 2: Project Origin
Assume the role of Special Forces Sgt. Becket as your routine mission quickly turns into a fight for survival against the wrath of Alma Wade. As Alma's terrifying power surges out of control, your squad is forced to battle through an apocalyptic landscape in search of clues for how to destroy her!
Battlefield 4™
Embrace unrivaled destruction in Battlefield 4™. Revel in the glorious chaos of all-out war packed with rewarding, tactical challenges in an interactive environment.
Call of Duty: World at War
Call of Duty is back, redefining war like you've never experienced before. Building on the Call of Duty 4®: Modern Warfare engine, Call of Duty: World at War immerses players into the most gritty and chaotic WWII combat ever experienced.
SUPERHOT
SUPERHOT is the smash-hit FPS where time moves only when you move. No regenerating health bars. No conveniently placed ammo drops. It's you, alone, outnumbered and outgunned. Snatch weapons from fallen enemies to shoot, slice and dodge through a truly cinematic hurricane of slow-motion bullets.
Commander Keen
Commander Keen: Invasion of the Vorticons: Episode 1: Marooned on Mars (Dec. 14th 1990) Episode 2: The Earth Explodes (1991) Episode 3: Keen Must Die! (1991) Commander Keen's very first adventure, and the debut of id's groundbreaking side-scrolling technology.
Realms of the Haunting
Forged in the Beginning and protected by the Seven Seals, there lies a place where thought and creation intertwine. The center for all realms of existence, it is the balancing force between good and evil, man and spirit. A focal point for all energies, and the one element that has kept the consuming nature of darkness at bay... Until now.
Sniper: Ghost Warrior 2
Sniper: Ghost Warrior 2 takes the bulls-eye precision of its predecessor to new and exciting heights!
Nuclear Dawn
Explore war-torn post-apocalyptic landscapes and take fight against enemies using various weapons in this FPS/RTS hybrid.
PAPERHEAD EP.0
In this cute cardboard world, something went horribly wrong... You wake up in a prison cell. A strange voice calls to you from the depths of dark corridors covered in runic symbols and blood. Reload your trusty shotgun and find out... WHY WOULD CARDBOARD... BLEED?
Perilous Warp
Perilous Warp is a fast-paced indie retro-shooter inspired by the classic 3D-actions. Communication with a distant space colony has been lost, and you bravely step into the teleporter with the desire for glorious adventures. But do not expect to win in a heartbeat!
The Bureau: XCOM Declassified
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.
Tom Clancy's Rainbow Six® Vegas 2
Tom Clancy's Rainbow Six® Vegas 2 - the sequel to the award-winning next-generation first-person shooter - returns to Sin City. Tom Clancy's Rainbow Six Vegas 2 is your last chance to rescue America's sexiest city from an escalating terrorist siege that will force you into heart-pounding action from beginning to end.