Top similar games like Outerstellar:

Post-apocalyptic multiplayer survival game with procedurally generated open world. Complete quests, master your skills, build bases, explore the world, trade, or conquer faction outposts. Endure the harsh conditions of the unforgiving wasteland!

An single/multiplayer game of survival in a desolated post-war future world. A group of clone challenges the dangers of a forbidden Earth trying to survive against monsters made of pure radiation.

Action-focused, open world survival shooter, PvPvE against fellow mercenaries and lethal XOIDS. Raid for resources alone or with team-mates, build and defend your base, stash your gear and survive against the odds. You are the hunters. You are the hunted. And the robots never sleep…

Step into a high-stakes, sci-fi FPS adventure where survival, base-building, and high time-to-kill combat merge in a dynamic, fully explorable spherical world.

Stars End is a multiplayer sci-fi survival game set hundreds of years in the future in a star system colonized by humans. Come and join us for crafting, construction, missions and PvP on the wild frontier...

Stranded in a hostile alien world, you must fight to survive. Hunt, harvest, craft, advance skills, and build using local resources along with technology from your voyage.

On a future post-apocalyptic Earth, build, craft, and loot other players’ bases to survive long enough to board the rocket and escape the dangerous robots and mercenaries that inhabit Ararat Island. Manipulate the weather and use earthquakes to change when the server wipe occurs in DYSTERRA!

Get ready for a Waterworld-themed survival game with modular base building, sunken city scavenging, crafting, base defense, and invasions of NPC clans for resources and territory. Ready for the water apocalypse?

GRAV is a sand box experience where you explore a multitude of planets, hunt strange alien creatures, build and defend outposts, craft weapons and armor, and attempt to survive against other players in a hostile environment.

Grab your jetpack and explore procedural asteroid fields, derelict spaceships and abandoned outposts. Build your Space Rig to process scavenged trash. Craft, trade and fight your way home in this interstellar, open-world survival sandbox.

Dead District is a multiplayer and single-player survival sandbox game in an open world where the player has a wide range of options.

Waking up empty-handed in a mysterious bamboo forest, you take shelter in an old man's humble shop. Survive nightly horrors while shopkeeping to fund a way back home in this open world survival game for 1-8 players.

In Outer Space, you play either alone or with others as a stranded astronaut who needs to repair his spaceship in order to escape from this planet. You can explore space, complete missions, or settle on a planet.

Wild Omission is an open world multiplayer sandbox survival game with severe weather set in an infinite procedurally generated world.

Survive the extreme conditions on Mars. Compete or cooperate with others to gather resources, 3D print your equipment and build your base, unveil the story behind the abandoned mining operations and, ultimately, escape the Red Planet.

Welcome to Graystone! Once believed to be the human race's next home, you are left alone after an asteroid hits the planet. Survive in an open-world environment, unfit for humans. Few resources remain, and must be rationed to survive. Will you band together, or fight to the survive?

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.

"Hardcore Survival" is a PvP-focused game where you start with a rock on a beach, build shelters, tame dinosaurs, and raid other players' bases in a prehistoric, dangerous world. Survive, dominate, or fall in this high-stakes adventure.

Explore an open world, sci-fi sandbox – in PVP, PVE, and co-op. Build and manage colonies on alien planets, and recruit AI survivors with unique personalities and skills. Craft, build, mine, farm, or get your electric death rifle and say hello to your neighbors.

You are lost in the Bermuda Void, where the ocean is endless and dry land precious. Craft your Ship-in-a-Bottle, then experience survival on the high seas. Sail for new land, build camps, hunt for treasures, trade for goods - then defend your ship from dreaded pirates stalking this strange realm!

Cryowakers is an exploration and survival game that takes place in a randomly-generated futuristic world. Play solo or with seven other players to explore, survive, build, and fight to uncover the truth behind the cryosleep experiments.

A fiercely formidable sci-fi survival game, set on a hostile alien world that wants you dead! Alone, or with a crew, do you have what it takes to survive?

TerraTech Worlds is an open-world, PvE survival game set on an uncharted alien planet. Explore, mine, build, craft and battle your way through natural hazards and dangerous enemies, to harness the power of your environment. Play solo or up to 6 friends via online co-op, and get ready for adventure!

Triton Survival is a galactic RPG survival game with an intense action, focused on surviving, crafting, gathering resources, building base and beat attacks of enemy hordes from the Neptune planetary system.

StarRupture is a first-person open world base-building game with advanced combat and tons of exploration. Play alone or in a group on this sublime and ever-changing planet, extract and manage resources, create your complex industrial system and fight off hordes of alien monsters.

Starsiege: Deadzone is a corridor extraction shooter set in the far reaches of space. Delve into derelict space stations overrun by hostile Cybrids in search of valuable resources. Group up with 2 squadmates to search for valuable resources and escape alive.

Peasant Kingdom is a medieval PVP game where players can build castles, craft items, fight other players with a wide variety of historical weapons, besiege and defend castles.

Craft Carnage is where survival meets strategy, where chaos meets creativity. How will you navigate this relentless realm? Will you emerge as a lone wolf, a skilled trader, or a leader of a thriving community? The choices are yours to make, and the consequences are yours to face.

Build on what was once and defend it with your life. Survive the wild and defeat the evil, alone or with friends in a wonderful poly world.