Games like Painkiller Overdose on Steam
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The Citadel
The Citadel is a brutal first person shooter, and a love letter to classic games such as Marathon, Doom and Wolfenstein 3d. Descend into the depths of a dark citadel, and fight through 6 Episodes and 30 levels of action packed with 6 challenging bosses. Go forth, Martyr.
Sniper Killer
Eliminate your victims as a serial killer dubbed ‘The Sniper Killer’. Terrorize the city with your keen eye and thirst for blood while staying one step ahead of a detective hell bent on bringing you to justice.
Aliens versus Predator Classic 2000
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.
Sniper: Ghost Warrior 2
Sniper: Ghost Warrior 2 takes the bulls-eye precision of its predecessor to new and exciting heights!
Alien Shooter
The endless darkness and the somber, long passages of a military complex have become the abode of evil, thousands of blood-thirsty creatures fill its offices, storehouses and mysterious laboratories. About 1,000 monsters on each map, showing up to 100 monsters simultaneously on one playing screen.
Project Nightmares Case 36: Henrietta Kedward
Project Nightmares is a survival horror game with a procedural structure, creating unique scares every time you play. A machine will induce you into a dream state, throwing you into a living nightmare firsthand in order to discover the story of Henrietta Kedward, an old woman with a dark past.
Ready or Not
Ready or Not is an intense, tactical, first-person shooter that depicts a modern-day world in which SWAT police units are called to defuse hostile and confronting situations.
Counter-Strike
Play the world's number 1 online action game. Engage in an incredibly realistic brand of terrorist warfare in this wildly popular team-based game. Ally with teammates to complete strategic missions. Take out enemy sites. Rescue hostages. Your role affects your team's success. Your team's success affects your role.
Aliens: Colonial Marines Collection
You & your friends are the deadliest killers in the galaxy – the US Colonial Marines. It’s up to you to not just survive, but wipe out the Xeno infestation.
Havoc
Havoc is an arcade tactical first-person shooter with semi-destructible environments. It offers a variety of game modes, including Bomb Defusal, Team Deathmatch, Free for All, and Gun Game, along with extensive options to customize lobby settings to your preferences.
RUSSIA BATTLEGROUNDS
RUSSIA BATTLEGROUNDS - is a online Battle Royale shooter in which players fight for their homeland. Only your fierce anger and cruelty will help you survive in this bloodbath.
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?
Return to Castle Wolfenstein
World War II rages and nations fall. The Nazis are twisting science and the occult into an army capable of annihilating the Allies once and for all. As US Army Ranger William “B.J.” Blazkowicz, pierce the black heart of the Third Reich and stop them...or die trying.
Blockstorm
Blockstorm is a FPS game set in a world made of destructible blocks. All maps and characters included in the game are made with the same tools that are available to the public. You can build everything in Blockstorm, and you can destroy it.
Counter-Strike: Source
Counter-Strike: Source blends Counter-Strike's award-winning teamplay action with the advanced technology of Source™ technology.
BioShock™ 2 Remastered
In BioShock 2, you step into the boots of the most iconic denizen of Rapture, the Big Daddy, as you explore through the decrepit and beautiful fallen city, chasing an unseen foe in search of answers and your own survival.
Chaser
Mars, 2044. The UN establishes MARSCORP (Martian Security and Economics Committee) under the leadership of Samuel Longwood. In the years that follow, the UN gradually loses control of MARSCORP, mainly due to the non-transparent licence policy of its director.
Shotgun Farmers
Missed shots grow guns in this multiplayer shooter. Fire your bullets into the ground to plant your ammo. The longer it grows the more ammo you will get!
STAR WARS™ Battlefront™ II
Be the hero in the ultimate STAR WARS™ battle fantasy with STAR WARS™ Battlefront™ II: Celebration Edition!
Cheaters Cheetah
Everyone will be given ACTUAL CHEATS in this multiplayer shooter. Use wallhacks and aimbots to your advantage and dominate the other cheetahs. The winner will get to BAN all losers!
Serious Sam 3 VR: BFE
Serious Sam 3 VR: BFE is a virtual reality action shooter, a glorious throwback to the golden age of first-person shooters where men were men, cover was for amateurs and pulling the trigger made things go boom.
Shadow Warrior Classic (1997)
Strap on your combat sandals...Lo Wang is coming to the Land of the Rising Sun to turn out the lights. Experience total blood immersion. If you can't touch, kill or drive something...then blow it away! Whether you're wielding shurikens, an Uzi, or a freshly plundered Guardian head...you've got your work cut out for you.