Shortly after landing on an alien surface, you learn that hundreds of your men have been reduced to just a few. Now you must fight your way through heavily fortified military installations, lower the city's defenses and shut down the enemy's war machine. Only then will the fate of humanity be known.

In Divinity:Original Sin you take on the role of a young Source Hunter: your job is to rid the world of those who use the foulest of magics. When you embark on what should have been a routine murder investigation, you suddenly find yourself in the middle of a plot that will rattle the very fabric of time. Divinity: Original Sin is a game that gives you a lot of freedom and plenty of gameplay mechanics to use or abuse. The game's epic story may drive you toward your ultimate end-goal, but how you get there is entirely up to you.

In the 37th Century, the galaxy is torn apart by three rival factions, each vying to eradicate its enemies from the universe, end the Infinite War and become the reigning power supreme. Supreme Commander represents the next evolution in the Real Time Strategy genre through its truly strategic and tactical gameplay and mind-blowing scale and scope, which is coupled with unrivalled zoom and control features.

Defend the free world from tyrannical titans in FULL METAL FURIES – a team-based brawler where cooperation is the key to victory.  An abstruse allegorical action adventure about atonement, allusions, and alliteration awaits all at an alternate age around Athens’ ashes.  FULL METAL FURIES will challenge you to think like a team, and to rethink what a brawler could be.

Demeo is a cross-platform cooperative adventure for up to four players that recreates all of the magic and camaraderie of gathering around a tabletop with friends to do battle against the forces of evil. 

A dark force has taken over the underworld in this RPG dungeon crawler, and it’s a world you’re not likely to survive alone. 

Assume the role of the eagle-eyed hunter, mystical sorcerer, deadly assassin, protective guardian, melodic bard, powerful warlock or boisterous barbarian. But choose your heroes wisely in this cooperative adventure, for once players have accepted their quest, they must work together to vanquish the unholy force that corrupts everything - or die trying.

In Starbound, you take on the role of a character who’s just fled from their home planet, only to crash-land on another. From there you’ll embark on a quest to survive, discover, explore and fight your way across an infinite universe. You’ll encounter procedurally generated creatures and weapons, discover populated villages and abandoned temples. Explore planets dotted with dungeons, eyeball trees and treasure. Make use of over a hundred materials and over one thousand in-game objects to build a sprawling modern metropolis or a sleepy secluded cabin in the woods, and do all of it alone or with friends!

In the game, aspiring generals have the chance to play as the legendary French general Napoleon Bonaparte or as one of his opposing factions. Battling through his three biggest military campaigns, the game will take you through Italy and Egypt, narrating the early years of the fearsome commander, while the third campaign will tell the story of his fateful drive towards Moscow and, ultimately, his showdown with the Duke of Wellington at one of the most famous battles of all -- The Battle of Waterloo.

Sins of a Solar Empire: Rebellion further expands on the Sins of a Solar Empire legacy with six massive Titans, three new capital ships, new corvette-class ships, and many other gameplay enhancements as well as graphic engine, AI and multiplayer upgrades. A stand-alone release that also contains all of the previous Solar Empire content, Sins of a Solar Empire: Rebellion serves as both a sequel and a reinvention of the acclaimed 4X space strategy game.

eXplore, eXpand, eXploit, eXterminate, EXPRESS. All of the depth, diplomacy, conflict and conquest of a turn-based 4X epic but played in fast-paced 60-minute competitive sessions. Play Solo or Multiplayer for 2-8 players.

Barotrauma is a 2D co-op submarine simulator – in space, with survival horror and RPG elements. Steer your submarine, complete missions, fight monsters, fix leaks, operate machinery, man the guns and craft items, and stay alert: danger in Barotrauma doesn’t announce itself!

In a distant future, the planets at the outer edges of the galaxy have become a beacon to fortune seekers and those yearning for a better life off world. But there are no guarantees in deep space. Pandora, one of these distant planets, was reported to be rich in untapped mineral wealth, and so drew many hoping to get rich quick, but in the end little was found beyond the scattered ruins of a past alien civilization. With nothing to gain, any who could soon abandoned Pandora, leaving those who remained to deal with the lawlessness of a world gone bust, and the mystery of the long-dead alien civilization. But as chaotic as these times were, there were worse days yet to come. After several years the planet's huge orbit slowly brought it near to its sun and once unknown and horrifying creatures sprang from their long hibernation to terrify the stranded colonists. The only hope of the colonists seems to be a vault discovered in the side of a mountainside, rumored to contain alien technology and secrets about Pandora. Will this discovery be the colonist's salvation or their end? Discover their fate in Borderlands.

A futuristic Sports-Action game, Rocket League, equips players with booster-rigged vehicles that can be crashed into balls for incredible goals or epic saves across multiple, highly-detailed arenas. Using an advanced physics system to simulate realistic interactions, Rocket League relies on mass and momentum to give players a complete sense of intuitive control in this unbelievable, high-octane re-imagining of association football.

Fight, sneak, and hack your way through randomly generated cities. It's like Nuclear Throne meets Deus Ex, mixed with the anarchy of GTA. Rogue-lite meets immersive sim, and goes completely insane.

Travel the globe and track your targets across exotic sandbox locations in HITMAN 2. From sun-drenched streets to dark and dangerous rainforests, nowhere is safe from the world’s most creative assassin, Agent 47 in the ultimate spy thriller story.

Run up the score in a relaxed slugfest or push the limits of your reflexes in this refined baseball simulator. The third entry in the series features an all-new Franchise mode, major graphical enhancements, and on-field additions including pickoffs and situational player traits.

Experience the most complete Trine ever created! The Trine series returns to the magic of 2.5D with Trine 4: The Nightmare Prince! The three heroes of the best-selling adventure series are back, sent on a quest to retrieve the troubled young Prince Selius. Amadeus the Wizard, Pontius the Knight, and Zoya the Thief are joined together once again on a thrilling quest through fantastical fairytale landscapes teeming with danger.

Prince Selius suffers from intensely dark dreams and, due to his magical talents, monstrous nightmares are able to slip into reality and wreak havoc on the waking world. Amadeus, Pontius, and Zoya must find the afflicted prince and resolve the desperate situation before the world is engulfed by the Nightmare Prince's shadows. Trine 4 reaches new heights in the series, bringing the most complete gameplay experience ever to fans and new players alike!

Build and manage a Maximum Security Prison. As the sun casts it’s early morning rays on a beautiful patch of countryside the clock starts ticking. You’ve got to crack on and build a holding cell to detain the job­ lot of maximum security prisoners that are trundling to your future prison on their yellow bus.

Grim Dawn is an action role-playing game intended for digital distribution on the PC. It is being developed by veterans of Iron Lore entertainment, the makers of Titan Quest. Grim Dawn is being built with Crate's own improved version of the Iron Lore engine and toolset; the same technology used to create Titan Quest. As a spiritual successor, Grim Dawn will attempt to better perfect the magical formula of exploration, character advancement, and loot collection pioneered by Diablo.

Playing as as Sgt. Gary "Roach" Sanderson, your international squad of elite soldiers battle through harrowing combat scenarios that range from snowy mountaintops in Siberia to the crowded streets of Rio de Janiero, Brazil and beyond, facing a terrorist force hellbent on redefining the boundary lines of today's modern warfare. Players can face the threat alone or with other players in cooperative SpecOps mode. For even more intense combat, take up arms against online foes in enhanced deathmatch warfare on a host of Modern Warfare 2 maps.

Amongst the best beat’em up series ever created, jammin’ ‘90s beats and over the top street fighting, the iconic series Streets of Rage comes back with a masterful tribute to and revitalization of the classic action fans adore.

Trine is a physics-based action game where three characters allow clever solutions to challenges created by hazardous puzzles and threatening enemies. The gameplay is based on fully interactive physics - each character's different abilities and tactics can be used to invent new ways to overcome obstacles and save the kingdom!

A party-based role-playing game, with a renewed focus on our trademark complex story reactivity and strategic combat. By including vehicles, environmental dangers, and a revamped, more fluid action system, we are evolving on Wasteland 2's deep tactical turn-based combat and unique encounter design. Play by yourself or with a friend in story-driven synchronous or asynchronous multiplayer. Choices open up (or close off) mission opportunities, areas to explore, story arcs, and lots of other content. Your Ranger Base is a core part of the experience. As you help the local people and establish a reputation in Colorado, quests and narrative will force you to make decisions on how to lead.

You've patched in to the enemy's security system: get ready to make your plan. Frozen Synapse is the ultimate strategy game: you have full control over your strike team, directing their every movement. At the same time, your opponent is plotting to defeat you. Plan your moves, then hit the "Execute" button: both you and your enemy's turns are executed simultaneously. Bite-size, hardcore strategy: a touch of X-Com and Laser Squad, with a striking sci-fi aesthetic.

The world is a vast, beautiful, and dangerous place – especially when you have been shrunken to the size of an ant. Explore, build, and survive together in this first person, multiplayer, survival-adventure. Can you thrive alongside the hordes of giant insects, fighting to survive the perils of the backyard?

HELLDIVERS™ is a hardcore, cooperative, twin stick shooter from the creators of Magicka. As part of the elite unit called the HELLDIVERS, players must work together to protect SUPER EARTH and defeat the enemies of mankind in an intense intergalactic war.

Best Online Coop PC Games

Quake II

Divinity: Original Sin

Supreme Commander

Full Metal Furies

Demeo

Starbound

Napoleon: Total War

Sins of a Solar Empire: Rebellion

Nexus 5X

Barotrauma

Borderlands

Rocket League

Streets of Rogue

HITMAN 2

Super Mega Baseball 3

Trine 4: The Nightmare Prince

Prison Architect

Grim Dawn

Call of Duty: Modern Warfare 2

Streets of Rage 4

Trine

Wasteland 3

Frozen Synapse

Grounded

Helldivers