33 Immortals is a co-op action-roguelike for 33 players. Play a damned soul, and rebel against God’s final judgment. Pick-up and raid, cooperate to survive hordes of monsters, defeat massive bosses, and face the wrath of God in a fight for your eternal life.

3xtinction is an Online Co-op Top Down Shooter with tactical and strategic elements. After a series of experiments on spiders gone wrong, the world is devasted by an outbreak.

You and your friend will have to cooperate in order to complete missions. Prepare yourself before every wave, buy weapons, ammos and set up turrets to stay alive. Each wave, the Infecteds are more and more numerous.

I'm a part of the first generation born into a free Poland, after 123 years of foreign occupation. The outbreak of WWII stripped me of my family, home, and future. We're angry, tired, but united. We're itching to do something, to regain some measure of control over our lives. My companions and I feel like we have only one choice: to get revenge and win back independence for our city and nation, or die trying.

The odds are overwhelmingly against us. We're like brothers and sisters, emboldened by our fighting spirit, relying on our wits, stealth and teamwork. But will it all be enough?

This game is a work in progress. It may or may not change over time or release as a final product. Purchase only if you are comfortable with the current state of the unfinished game.

How long will you survive? With over 18 million copies sold, 7 Days has defined the survival genre, with unrivaled crafting and world-building content. Set in a brutally unforgiving post-apocalyptic world overrun by the undead, 7 Days is an open-world game that is a unique combination of first-person shooter, survival horror, tower defense, and role-playing games. It presents combat, crafting, looting, mining, exploration, and character growth, in a way that has seen a rapturous response from fans worldwide. Play the definitive zombie survival sandbox RPG that came first. Navezgane awaits!

Trace ribbons of light to release the energy in the music as you speed through stunning alien worlds. Fly solo or team up with a friend. Encounter strange enemies and giant boss creatures. Unleash devastating missile barrages and rain heavy cannon fire to the beat of the epic soundtrack from Monstercat.

Aaero2 is the sequel to the critically-acclaimed 'Aaero' (2017). The game has been completely rebuilt from the ground up, taking into account and addressing every single piece of feedback we could find on the first game.

Abathor is a 2D arcade action platformer for up to 4 players. You are the last hope in defense of Atlantis, you’ll face hordes of enemies and countless challenges. Enjoy its pixel art and epic music. A cooperative and competitive game to achieve glory or death.

Abiotic Factor is a survival crafting experience for 1-6 players set in the depths of an underground research facility. Caught between paranormal containment failure, a military crusade, and chaos from a dozen realms, the world’s greatest minds must survive against the universe’s biggest threats.

Gather your friends and dive into Abyssus' fast-paced multiplayer shooting action. Fight through gorgeous hand-crafted levels in a roguelite adventure that will put your tactical skills to the ultimate test. Wield powerful brine-powered weapons and refit them with ancient technologies to gain an edge over your foes. Obtain divine blessings to enhance your firepower with elemental and mystic effects.

Across the Obelisk is a coop RPG deckbuilding roguelite. Play solo or with your friends, choose your heroes, unlock items and cards, craft your deck and face powerful enemies in deep tactical combat. Would you dare to go across the obelisk?

You’re an operative stuck in a time loop, always brought back from the dead to the same point.

Choose your loadout and enter quantum unstable zones rich with active matter — a substance capable of warping and ripping the very fabric of space and time.

Fight against rivals from other timelines, survive physics-breaking anomalies and try to stay alive. Harvest active matter, gather loot and extract to a safe place before the whole zone ceases to exist with everything inside it.

Adios is a cinematic first-person game about sticking to a complicated decision. You're a pig farmer in Kansas. It's October. Cold, crisp mornings are the norm, and you have decided that you're no longer okay with letting the mob use your pigs to dispose of bodies. When your old friend - a hitman - arrives with his assistant to deliver another body, you finally screw up the courage to tell them that you're done. Your friend doesn't want you to stop. He knows that there's no such thing as quitting, so he'll try to convince you that you're making a mistake. You spend the day together, doing chores and exploring the nooks and crannies of an authentic environment in the American Midwest alongside the man who will be forced to kill you, if he can't convince you to stay. How you respond will determine the rest of your life. Adios means goodbye.



Aerial_Knight's We Never Yield is a stylized, action-packed, and aurally captivating experience that pushes players to navigate obstacles and enemies in both intense single-player and two-player cooperative modes. Players can control both characters simultaneously in single-player mode for an extra challenge! Heart-racing beats guide the heroic brothers through the game’s deadly and daunting environments as they race through a fallen kingdom featuring a variety of challenges throughout.

After Wave: Downfall is an arcade shooter where the player battles against monsters, completes various missions with a cool battleship.  Deathrix invaded the world and released a mysterious meteorite causing a great flood. Players can upgrade their ships for better performance to fight the most brutal enemies.  A Local Co-op mode allows the player to team up and adventure with others.  
 
--3D cartoon style graphics with stunning effects. 
--Join your friends on an adventure in a local Co-op mode. 
--Multiple difficulty levels. 
--10 stages to overcome with many brutal bosses. 
--Upgrade your battleship systems to develop different playing skills. 
--Six battleships to choose from with different abilities. 
--Extra mode allows playing in multiple ways. 
--Many achievements within the game to unlock.

Age of Water is a new MMO game set in a post-apocalyptic Earth completely covered in water.

The rooftops of high-rise buildings and tops of other man-made and natural objects turned into islands, on which the surviving people built new settlements. Your adventure begins near one of them.

AirportSim is a contemporary simulator from the premium indie segment, which allows you to play the role of an airport ground handler. Realistic graphics, true-to-life airport models, and dynamic weather conditions will deliver the setting of a genuine airport apron.


Alien Hominid HD, the award-winning 2D side-scroller from The Behemoth, is now available for Steam! With hand-drawn graphics, excitingly fast gameplay, and the humor that started it all, loading up this title is like traveling decades back in time, with improved visuals and the same hardcore gaming experience.

Navigate your surroundings by jumping, dodging attacks, grabbing agents, and digging underground! Use your trusted blaster to shoot at anything in your path and hurl grenades towards your enemies for epic explosions! Catch agents off guard with your knife in close-up combat, or chomp their heads off if that’s more your style.

Whether you’re playing solo or 2-player local co-op, Alien Hominid HD is back with the three classic difficulty options:

Old friends and bitter enemies await as you invade Earth alongside a Mothership full of alien friends! Blast, beam, and bite your way through an endless swarm of enemies as you and up to three of your fellow hominids cause mayhem with a huge arsenal of weapons, mutations, and acrobatic maneuvers.

Brought to you by Q-Games, the creators behind such classics as PixelJunk Monsters and PixelJunk Shooter, this innovative cooperative multiplayer game introduces a fresh new way to play with your friends.
Dive into a quirky multiplayer co-op puzzle game where adorable, fluffy cube-shaped creatures collaborate to reach their goals.
These creatures, each oddly shaped, jostle against each other to help solve puzzles together.
When in trouble, shout "HELP!" and friends will surely come to your aid. With everyone's strength, turn friendships into friend-shapes!

[Multiplayer Co-op: Teamwork Is Key Across All Skill Levels]
The game's intuitive, straightforward controls mean that anyone can jump right in. You'll control creatures that are shaped differently as you progress through each level, to clear challenges. Although these creatures can move around freely, they cannot rotate, necessitating the need for teamwork to solve the puzzles. Join forces to overcome obstacles and reach your goals together!

[Enjoy Playing Online with Unique Voices]
The simple controls allow the creatures to express various voices based on their situations. By using the voice feature, you can enjoy lively gaming sessions with distant friends as if they were right next to you.

[Co-op Play, Combined Local and Online]

A shooty, slashy, RPG-y game mixing retro and modern sensibilities. A blend of influences from Gauntlet & Smash TV to Zelda & Angband, Ampersat is a handcrafted adventure with appeal to Roguelite fans. Battle ASCII creatures in colorful areas & free letters to return language to the village!

ANIQUILATION is a Twin Stick shooter set in small planets (some of which can be terraformed as you play!) in which not only your shoots, but also the enemies and planet environment are your weapon thanks to your SWORD which you can use to throw or reflect almost ALL the elements in the environment! You will follow the adventures of a pilot and her leader who are wandering in space and are trying to return to their home Galaxy and got lost after trying to solve a mystery that arrived to their galaxy. As you progress, you’ll discover that it wasn’t just a coincidence that the heroes arrived to this specific mysterious galaxy and will understand why the only solution is invoking the fabled “Aniquilation” upon the galaxy! Find and learn about new energy sources for your people while you travel between each one of the game planets levels via racing-like tubular levels!

Welcome to the dawn of the industrial age. The path you choose will define your world. Are you renovator or exploiter? Suppressor or liberator? It's up to you how the world will remember your name. In Anno 1800, players will take charge of their own fortune as they navigate the rapidly evolving technological and malicious political landscape of the 19th century in their quest to build an empire that will stand the test of time. Combining beloved features with innovative gameplay in a memorable new setting, Anno 1800 marks the beginning of a new era for the Anno franchise.

Take on the role of a Vault Breaker in search of alien artifacts called “Vaults” and fight against monsters and powerful bosses, you can strengthen your Breakers to explore the farthest galaxy that no one has ever reached.

ARC Raiders is a multiplayer extraction adventure, set in a lethal future earth, ravaged by a mysterious mechanized threat known as ARC. Enlist as a Raider and scavenge the surface to thrive in a desolate world. But beware of the machines. Beware of Raiders preying on others.

ARC Raiders blends the tension from extraction shooters with atmospheric settings from the adventure genre. Lurking threats—from deadly machines to other Raiders—create a constant ebb and flow of intensity, where every moment is charged with the thrill of high stakes. Extract valuable loot and explore the unfolding mysteries of a vibrant, lethal world.

ARC Raiders supports seamless social play across PlayStation, Xbox, and PC. Play with your squad and thrive as a team, or rise in the ranks as a lone ranger.

Gilly, the owner of a local arcade, is trying to save his business from a faceless mega corporation. To do so he takes all the top arcade games and connects them all to make a super game, unfortunately the mega corporation, Fun Fun Co., hacks the game and injects a virus. You and your friends need to save the game and the last hometown arcade.

Take up your weapon in this RPG bullet-hell world and embark on a journey to right wrongs from long ago. Only you can defeat the evil forces of the Undying guardians and reunite the world with the fabled Archvale.

Best Xbox Series X|S Coop Games

33 immortals

3XTINCTION

63 Days

7 Days to Die

Aaero2

Abathor

Abiotic Factor

Abyssus

Across the Obelisk

Active Matter

Adios

Aerial_Knight's We Never Yield

After Wave: Downfall

Age of Water

AirportSim

Alien Hominid HD

Alien Hominid Invasion

All You Need Is Help

Ampersat

ANIQUILATION

Anno 1800

ANVIL

ARC Raiders

Arcadegeddon

Archvale