13 Aliens · Open World games your group can play together online, including The Planet Crafter, Nuclear Nightmare, and Destroy All Humans! 2 - Reprobed.
A space survival open world terraforming crafting game, designed for 1 to 10 players. Alter the ecosystem of an inhospitable planet to render it habitable for humanity. Survive, gather resources, and build your base. Then, generate oxygen, warmth, and pressure to create a brand new biosphere.
95%95% positive of 69,767 reviews5.2KPlaying now: 5,172$23.99
Venture forth as part of a specialized team of fellow players tasked with retrieving classified materials, evading the black goo virus, and the nightmarish entities it has spawned. With time running out before the US government initiates a devastating nuclear strike to contain the spreading menace.
80%80% positive of 15,689 reviews184Playing now: 184$0.83
Crypto is back with a license to probe. The alien invader returns, groovier than ever. Experience the swinging ‘60s in all its chemical-induced glory and take revenge on the KGB for blowing up your mothership. You’ll have to form alliances with members of the very species you came to enslave.
79%79% positive of 2,305 reviews37Playing now: 37$39.99
From one of gaming's most iconic sagas, Halo is bigger than ever. Featuring an expansive open-world campaign and a dynamic free to play multiplayer experience.
69%69% positive of 181,685 reviews968Playing now: 968Free
Interstellar Rift is an open world starship simulator with an emphasis on ship construction and multi-player interaction. Survive in a hostile galaxy with your own custom designed and constructed starship. Invite other players to join your crew or fight them across the galaxy!
65%65% positive of 1,414 reviews11Playing now: 11$19.99
Foul Tyranids rampaging on barren worlds; the mysterious Aeldari waging war on the Imperium; a prophecy that could change the fate of an entire Sector. Purge the unclean with the new Tech-Adept Inquisitor and carry out the Emperor’s will in the grim Action-RPG “WH40k: Inquisitor - Prophecy”.
78%78% positive of 2,895 reviews49Playing now: 49$24.99
Experience the insane antics of Saints Row IV. The Saints have gone from the Penthouse to the White House - but Earth has been invaded and it’s up to you to save it with an arsenal of superpowers and strange weapons, in the wildest open world game ever.
87%87% positive of 57,580 reviews237Playing now: 237$19.99
Signs of Life is a sci-fi survival sandbox platformer with a combination of procedurally generated and hand-crafted content. You'll explore mysterious locations, mine blocks for resources, and meet strange (and some familiar) creatures, some of which don't even want to kill you and eat your corpse.
75%75% positive of 716 reviews12Playing now: 12$14.99
Brace yourself for a brand new action-packed Open World. Explore a huge world to gather materials for gear and defenses. Use everything at your disposal to defend your bases and defeat hordes of hostile monsters. Play solo or up to 8-player online!
63%63% positive of 1,444 reviews0Playing now: 0Free
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
EXOME is a co-op sci-fi survival shooter that blends wave-based survival with open-world exploration. Battle hordes of aliens, upgrade your arsenal, and uncover the hidden truths of the deep forest. Will you face it alone or bring your friends along?
80%80% positive of 265 reviews0Playing now: 0$14.99
Last Whisper Survival is a cooperative zombie survival game where exploration of the open world is key. As you venture further, you'll need to upgrade your gear and level up your character and skill tree to handle the increasing challenges as you move through the world.
60%60% positive of 123 reviews0Playing now: 0$2.33