Aliens · Singleplayer games to play together

84 Aliens · Singleplayer games your group can play together online, including Serious Sam HD: The First Encounter, Shadowgrounds Survivor, and Half-Life 2.

All games: 24

Serious Sam HD turns Egypt into a co-op shooting gallery

Clear an arcade FPS campaign with up to 16 online players, or use Fusion 2017 for local split-screen with up to four on one display.

91%91% positive of 7,424 reviews60Playing now: 60

Shadowgrounds Survivor

Surviving is only half the game. The award-winning atmosphere and gameplay mechanics of the original Shadowgrounds make a triumphant return in this spin off/sequel armed with a slick new feature set! Shadowgrounds Survivor tells the story of the last remaining humans on Jupiter's moon Ganymede, where the alien onslaught is in full force.

62%62% positive of 585 reviews1Playing now: 1$9.99

Half-Life 2

Reawakened from stasis in the occupied metropolis of City 17, Gordon Freeman is joined by Alyx Vance as he leads a desperate human resistance. Experience the landmark first-person shooter packed with immersive world-building, boundary-pushing physics, and exhilarating combat.

97%97% positive of 204,574 reviews2.2KPlaying now: 2,210$9.99

Half-Life

Named Game of the Year by over 50 publications, Valve's debut title blends action and adventure with award-winning technology to create a frighteningly realistic world where players must think to survive. Also includes an exciting multiplayer mode that allows you to play against friends and enemies around the world.

96%96% positive of 118,309 reviews1.2KPlaying now: 1,191$9.99

Earthfall

NOW AVAILABLE! When the Earth falls to an extra-terrestrial invasion, humanity becomes an endangered species. Earthfall is a four-player cooperative shooter that challenges players to survive hordes of ruthless alien drones and their inscrutable masters.

64%64% positive of 1,573 reviews0Playing now: 0$19.99

Shadowgrounds

Shadowgrounds breathes fresh air into the action genre with explosive combat sequences, an innovative weapon upgrade system, and an intriguing storyline. The adrenaline-pumping, top-down gameplay and audiovisual fireworks set the scene for this new action experience which also includes single computer (split keyboard or joystick) co-op...

82%82% positive of 1,235 reviews0Playing now: 0$6.99

The Deadly Tower of Monsters

Fire up your ray guns, crystal swords, and laser whips, and get ready for thrills and chills! With three incredible movie stars playing out decidedly B-level sci-fi exploits, Dick Starspeed, Scarlet Nova, and Robot will have you ready to jump off the side of the tower—right into adventure!

89%89% positive of 1,065 reviews0Playing now: 0$14.99

Sketchy's Contract

A 1-8 player co-op sci-fi looter horror game that takes place on a mysterious asteroid belt where players must complete contracts by traveling to exotic planets to kill creatures, find loot, and/or farm planetary materials that they must return to an ominous figure named Sketchy.

82%82% positive of 1,027 reviews0Playing now: 0$8.99

Serious Sam HD: The Second Encounter turns every path into a firefight

Take on Mental’s monster army with up to 16 online players, or launch local split-screen co-op through Serious Sam Fusion 2017.

91%91% positive of 780 reviews0Playing now: 0$19.99

SKIBIDI GYATROOMS

Skibidi Gyatrooms is a 1-4 player co-op horror game. You and the homies just fell into the Backrooms, you must out-GYAT the Skibidi Toilet with max rizz or get flushed. Expect cursed levels, and brainrot that’ll keep you on edge.

80%80% positive of 636 reviews0Playing now: 0$0.99

Alien Hominid HD

The 2D side-scrolling shooter from The Behemoth is back! With your mighty blaster and a group of mysterious kids by your side, destroy the agency and reclaim your spaceship!

95%95% positive of 600 reviews0Playing now: 0$11.99

No Creeps Were Harmed TD

Employ lethal turrets, traps, and gadgets to defend against an onslaught of evolving creeps! Step into a twisted, hyper 3D, mind bending realm. Upgrade and adapt your defenses. Become a master maze crafter. Collect bizarre artifacts. Rush creeps for lucrative rewards, and succumb to greed!

89%89% positive of 473 reviews0Playing now: 0$19.99

8-Bit Invaders!

8-Bit Invaders! is a fast-paced, retro Real-Time Strategy game for the PC. Control the military might of the Galactic Marine Corps or Invade with the devastating power of the Cranioids! Mine, Build, and Fight your way to victory! Conquering the Multiverse was never so easy.

82%82% positive of 402 reviews0Playing now: 0$14.99

Spaceland: Sci-Fi Indie Tactics

Incredibly dynamic turn-based strategy, reviving the traditions of the old school tactics. Lead a team of the most desperate fighters, destroy alien monsters and uncover the secrets of the lost planet.

74%74% positive of 359 reviews0Playing now: 0$19.99

GRANDMA

Join the battle to save earth from aliens and robots. Choose to play on the side of humans or aliens in battle. 1. Play alongside up to 50 online players 2. Choose various levels 3. Play in various modes such a s capture the king, rush, team deathmatch, conquest.

86%86% positive of 344 reviews0Playing now: 0Free

Road to Eden

Road to Eden is a third-person multiplayer survival coop game, set within the post-apocalyptic ruins of a world destroyed by an alien invasion. You wake up at the side of the road with no memory and must team up with other survivors to make the long and dangerous journey to Eden.

61%61% positive of 341 reviews0Playing now: 0$19.99

Stellar Warfare

Space RTS with base building and ship customization. Personal passion project. More than 200 available ships, weapons and modules to design your fleet with. Contains a small campaign, several single and multiplayer game modes and a coop game mode. Also contains Wave defense!

80%80% positive of 320 reviews0Playing now: 0$19.99

Tormentor❌Punisher

Everything in Tormentor❌Punisher can be killed in one hit, from bosses to yourself. Bosses conjure traps to make the arena hellish. Demons adjust to your play style and punish you. Perform combos on enemies and gain cool upgrades. Reload your machine gun by firing your shotgun. Let's do this!

92%92% positive of 306 reviews0Playing now: 0$7.99

Mist Slayer

Mist Slayer is an action Roguelite game. You are a time traveling hero, called to aid in a mystical war, and armed with unique weapons and skills. Face down amazing enemies in parallel universes, collecting various power-ups, and exploring as you go. Play alone or team up with friends.

63%63% positive of 305 reviews0Playing now: 0$7.99

Abduction Bit

Abduction Bit is a NES-like arcade based on elements of some timeless classics from 80's (Bubble Bobble, Ice Climber, Mario Bros).

88%88% positive of 245 reviews0Playing now: 0$0.99

Solstice Chronicles: MIA

In this 2-player twin-stick shooter, use a friendly drone for a game-changing abilities. Survive waves, upgrade, and uncover the mystery in this cooperative, action-packed experience.

68%68% positive of 245 reviews0Playing now: 0$14.99

Presidents Tower Defense

Defend the Oval Office from an endless alien invasion by harnessing the abilities of your favorite (or least favorite) U.S. Presidents.

92%92% positive of 227 reviews0Playing now: 0Free

Space Food Truck

Space Food Truck is a cooperative, culinary scifi adventure. 1-4 players take on unique roles aboard the Galaxy Gourmet. Their mission: explore a vast, procedurally-generated galaxy in search of exotic ingredients, craft delicious recipes, and withstand the untold dangers of deep space.

70%70% positive of 217 reviews0Playing now: 0$9.99

Arcade Mayhem Juanito

Arcade Mayhem Juanito is a retro experience about arcade-hopping. Teleport into different video games, play with unique mechanics inspired by well-known arcade games, face stunningly animated bosses and join the fight against the clonocell invasion.

96%96% positive of 205 reviews0Playing now: 0$9.99

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