Painkiller: Battle out of Hell

Stranded in a place between Heaven and Hell, your time of judgment is at hand. The Underworld is on the verge of unholy war, and you are but a pawn in the infernal battle. As you fight for your purification, the truths behind the deceptions are revealed. Painkiller puts you in a nightmarish world where monsters swarm you in mobs. Eliminate your enemies using a variety of weapons and using your power to morph into a possessed creature.

Quake 4 is a action shooter game which serves as the another chapter in the Quake series.

Rogue Warrior is a character-driven, first-person-shooter, featuring Richard Demo Dick Marcinko's explosive personality in an action-packed single player campaign, and intense multiplayer combat.

Set in 2069, Syndicate takes players into a dark, Machiavellian world run without government oversight with many syndicates vying for total dominance of their local market place. With no one to question their intentions or actions, three mega corporations - Eurocorp, Cayman Global, and Aspari - are at the forefront of this brutal war for control of the pivotal American market. In the world of Syndicate, everything is digitally connected, including the people. Players aren't limited to the weapons in their hands. Through DART 6 bio-chip technology implanted in their head, players can slow down time and breach the digital world around them to take down their foes using a variety of upgradable hacking mechanics. Syndicate's blend of fast-paced, futuristic, action shooter settings and story combined with innovative chip breach gameplay instantly immerses players in a unique digital world.

Breach & Clear brings deep tactical strategy simulation to PC, Mac and Linux! Build your Special Operations team, plan and execute advanced missions, and own every angle. Choose your real-world squad -- US Army Rangers, Germany's KSK, Canada’s JTF2, UK SAS, and more -- and take on a variety of foes with different skill-sets and abilities. Learn to approach, engage, and dominate your opponents through superior tactics and training.

Global Operations is a first-person tactical shooter computer game developed by Barking Dog Studios and published by both Crave Entertainment and Electronic Arts. It was released in March 2002. (Wikipedia)

Escape from Tarkov is a hardcore and realistic online first-person action RPG/Simulator with MMO features and story-driven walkthrough.

Days Gone is an open-world action-adventure game set in a harsh wilderness two years after a devastating global pandemic. Play as Deacon St. John, a Drifter and bounty hunter who rides the broken road, fighting to survive while searching for a reason to live. At its core, Days Gone is about survivors and what makes them human: desperation, loss, madness, betrayal, friendship, brotherhood, regret, love – and hope. It’s about how even when confronted with such enormous tragedy they find a reason to live. Hope never dies.

Black Squad is Free to Play first-person-shooter military game, with Battleye support, dedicated servers, great shooting mechanics and amazing netcode. You can experience 10 different modes from classic to massive multi-play modes. And unlock new weapons and characters with currency given to the player after each match.

The EDF series moves away from its traditional series and into new territory with this new project. Developed by YUKE'S, with a theme song by Takashi Niigaki and creatures designed by Ryu Oyama for an EDF game that has never been seen before. Welcome to EARTH DEFENSE FORCE: IRON RAIN. Set on planet Earth devastated by war, this new adventure joins the EDF as they continue to battle to save the world.

The world is in ruins. Only a remnant of mankind remains, hunted to near extinction by horrors from another world. As one of the few survivors left, you will venture into portals to fantastic realms to gather the resources and firepower needed to fight back and retake what was lost. Remnant: From the Ashes is a third-person survival-action game set in a post-apocalyptic world overrun by mythical creatures. The game provides players and up to three of their friends with a unique, customizable gameplay experience filled with intense shooting and melee combat, gear and weapon crafting, character progression and dynamically-generated levels that offer an infinite number of ways to explore and take on deadly monsters and epic bosses.