Alien Swarm

Alien Swarm: Reactive Drop is a FREE and open source cooperative top down shooter. The player plays with other marines against hordes of aliens, in order to complete different objectives. In the game, there are 4 different classes to play, each one consisting of two characters with different statistics including some class restricted weapons. During gameplay, the player will earn experience, that is used to unlock new weapons and items to use in combat. The game combines elements from survival games like Shadow Grounds and Left for Dead.

Alien Swarm is a game and Source SDK release from a group of talented designers at Valve who were hired from the Mod community. Available free of charge, the game thrusts players into an epic bug hunt featuring a unique blend of co-op play and squad-level tactics. With your friends, form a squad of four distinct IAF Marine classes. Plan your attack using an unlockable arsenal of weapons with countless loadout configurations against a wide variety of aliens. Blaze your way through an overrun, off-world colony, eradicating the alien infestation in environments ranging from the icy planet's surface, to a subterranean lava-flooded mining facility. Along with the game get the complete code base for Alien Swarm that features updates to the Source engine as well as the SDK. Alien Swarm adds 3rd person camera, depth of field, improved dynamic shadows and a wide variety of gameplay additions to the Source engine.

Buckle up, soldier! Welcome to Aliens: Colonial Marines. Created by Gearbox, the critically acclaimed and fan-favorite developers of Borderlands and Brothers In Arms, you and your friends will become the most badass military outfit in the galaxy – the US Colonial Marines. It’s up to you to not just survive, but wipe out the Xeno infestation.

Enlist in an intense brand of Axis vs. Allied teamplay set in the WWII European Theatre of Operations. Players assume the role of light/assault/heavy infantry, sniper or machine-gunner class, each with a unique arsenal of historical weaponry at their disposal. Missions are based on key historical operations. And, as war rages, players must work together with their squad to accomplish a variety of mission-specific objectives.

Call of Duty: Infinite Warfare delivers three unique game modes: Campaign, Multiplayer, and Zombies. Campaign is a return to the gritty, military roots of the franchise, while boldly looking ahead, delivering a rich and engaging narrative that is unlike anything to date in a Call of Duty game. The player will embark on a classically-styled story about grand scale warfare, set in a future where human conflict has spread throughout our solar system. Multiplayer combines popular mechanics such as the chained-based movement system, with a load of gameplay innovations to deliver one of the deepest and most engaging online experiences in gaming. The new Zombies mode will thrill co-op players with an original, distinctive approach and an uproarious narrative sure to excite fans. The title introduces stunning, multi-planetary environments, new weaponry, and all-new player abilities.

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!

One of the most popular online action games of all time, Team Fortress Classic features over nine character classes -- from Medic to Spy to Demolition Man -- enlisted in a unique style of online team warfare. Each character class possesses unique weapons, items, and abilities, as teams compete online in a variety of game play modes.

Bringing the legendary war between two of science-fiction's most popular characters to FPS fans, AvP delivers three outstanding single player campaigns and provides untold hours of unique 3-way multiplayer gaming. Experience distinctly new and thrilling first person gameplay as you survive, hunt and prey in the deadly jungles and swamps surrounding the damned colony of Freya's Prospect. As the Marine, you'll experience a claustrophobic and terrifying experience where light is your friend, but there's never enough. However, the United States Marine Corps are humanity's last line of defense, and as such they are armed to the teeth with the very latest in high explosive and automatic weaponry. As the Predator, you will stalk from the shadows and from above, passing athletically through the treetops to ambush your victims. Although equipped with an array of powerful, exotic weapons and tracking equipment, honor ultimately dictates that you must get in close and take your trophies face to face. As the most deadly species in the universe, the Alien offers you the chance to play as the very stuff of nightmares - the monster in the dark swarming forward with countless others, jaws like a steel trap and claws like blades. Play all sides off against each other in a series of unique 3-way online modes and go tooth-to-claw-to-pulse rifle in the reinvention of one of multiplayer gaming's defining moments.

StarCraft is a real-time strategy game set in a distant sector of the Milky Way galaxy in the 26th century. Players command one of three species across separate campaigns: the Terrans, resourceful human colonists cut off from Earth; the Zerg, an insectoid swarm that assimilates other species; and the Protoss, a technologically advanced race with powerful psionic abilities. Each species features distinct units, structures, and strategic options. The game includes a story-driven single-player campaign for each faction and competitive multiplayer via Battle.net.

Half-Life is a 1998 first-person shooter (FPS) game developed by Valve Corporation and published by Sierra Studios for Windows. It was Valve's debut product and the first game in the Half-Life series. The player assumes the role of Gordon Freeman, a theoretical physicist who must escape from the Black Mesa Research Facility after it is overrun by aliens following a disastrous scientific experiment. Its gameplay consists of diverse combat, exploration and puzzles.

Fight in the theatre of war that changed the world forever. Battle alongside your compatriots on some of the most inhospitable environments of the Eastern Front in Red Orchestra: Ostfront 41-45. Red Orchestra places you in the most realistic WWII first-person multi-player combat to date on the PC, allowing the player to fight through some of the most intense combat of the war. You can play as infantry, using a wide range of infantry weapons, or crew one of the many armored combat vehicles available in the game, from half-tracks to the most famous German and Soviet heavy tanks. Engage the enemy with everything in your arsenal, from your bayonet at close quarters up to the massive 122mm cannon on the Soviet IS-2. And if that isn't enough, find an officer and a radio to call in thunderous artillery strikes to shake the enemy loose.

In a savage world of man vs nature, are you the hunter or the hunted? The creators of Left 4 Dead, Turtle Rock Studios, bring you Evolve, the next-generation of multiplayer shooters where four hunters face-off against a single, player-controlled monster. Stalk your prey, execute your attack and prove you are the apex predator in adrenaline-pumping 4V1 matches. 4V1 – Grab three friends and hunt the monster or stalk the humans as the evolving beast. Whichever side you choose, you will have access to powerful weapons and abilities that deliver balanced, competitive gameplay. Hunt Together or Die Alone – Choose a hunter that fits your play style. Whether you play as the Trapper, Support, Assault, or Medic, every role is vital and teamwork is key in surviving an encounter with the monster. Beast of Prey – As the monster – the lone predator – you are the boss battle. Use savage abilities and an animalistic sense to wreak havoc, kill the humans and prove you are the dominant species. Savage Planet – Neither flora nor fauna are friendly on planet Shear. Fall victim to natural hazards or use them strategically against your prey. Character Customization – Level up to unlock new upgrades, skins and perks for your favorite class: hunter or monster. Earn your infamy on the leaderboards and become the apex predator.