Top similar games like AlterSpace:

Land with your friends on the surface of various planets, gather resources, create items and buildings, defeat enemies and move to other planets to discover their secrets and secrets

Survive in a ruined Biosphere on a hostile alien world. Endure, then harness the extreme weather, battle powerful bosses for upgrades, and uncover the mystery behind the planet’s lost atmosphere.

Lead a rebellion against tyranny in this open-world, survival sci-fi RPG game. Utilize alien technology to explore, build bases, craft, and farm. Prepare for an unequal combat to rescue humanity from tyranny and a mysterious deadly virus.

FPS single-player de ciencia ficción con supervivencia y exploración interdimensional, donde combatís criaturas anómalas y luchás por sobrevivir en entornos distorsionados.

Survive a hostile alien world shaped by three mysterious moons. Gather resources, rebuild your systems, adapt to extreme conditions, and uncover what happened before your arrival.

Cyber Courier 2088 is an cyberpunk sci-fi courier game, where you start out as a taxi driver transporting passengers and goods as you become a sought after cyber courier in a crazy low-poly Sci-Fi world.

Protect the lighthouse, destroy nests and complete tasks.

The city is gone. Can you survive? Yuri is a soldier who is on training by C.A.P.I.T.A.L. which is an international military corporation. Can Yuri get out of the capital of Turkey alive and uninfected?

Survival FPS set after an alien invasion. The explosion of an alien energy core shattered reality, creating rifts to the past, other parts of Earth, and parallel worlds. As a survivor from New Bohemia, uncover rift energy secrets and learn what the aliens are building and why.

RAID hostile spaceships, BUILD powerful ships, and RECRUIT skilled crew members to expand your fleet! Jump into this action-packed shooter and fight to keep Project Mind from falling into the wrong hands...

Exodomia is a narrative-driven, action-adventure game set on the robotic world of Salakar V! In this fast-paced combat experience, you will encounter many dangerous creatures and enemies as you navigate a story of struggle and survival.

A light-hearted but deep first person exploration and survival game for you and your friends set in a procedurally-generated asteroid belt on the edge of known space. Explore the world, learn new skills, build and defend your base, and conquer the belt's unique threats.

Outpost is a building and planet exploration game. An entire planet is available for you to explore.

INTERASTRA is a fully immersive first-person sci-fi survival adventure game set in outer space. Discover unknown planets differing in weather conditions, resources, and various mysteries. Craft necessary equipment, launch, and control space rockets, explore the universe, and survive among the stars.

3d space style game where you walk around a ship trying to figure out what happened as you seem to be the only survivor. In the far future as humanity fights its biggest war yet. you wake up in a broken ship floating in space with no clue what happened to the crew or the ship.

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From stone tools to modern weapons and giant mechs — survive, craft, and conquer another world.

Spiritus Astrum is a persistent, open-world roleplaying sandbox with multiplayer support. It features an infinite, procedurally generated universe which players are free to explore without restriction. Spiritus Astrum is more than a game, it is a world.

A sci-fi survival colony sim. Mine ore, craft equipment, and build a base. Recruit and provide for humans, robots, and aliens to grow your colony. Raise oxygen, heat, and pressure in order to turn a dead planet into a living one. Defend against enemy attacks and keep the base running.

A sci-fi FPS where a pirate ambush scatters your family across alien planets. Play as Arin, fight bosses, travel through portals, and reunite the Mikseli family. Demo available now. Wishlist for launch updates.

Stranded on Dylan-4, the elements are the least of your worries. Play solo or join forces in co-op to survive a learning, dynamic enemy faction. Research local materials, construct modular bases, fight and explore to pierce the planet's magnetic field to escape.

An anomaly has been detected in the sub-arctic north. The science team sent to investigate has gone missing. Survive an alien-scarred wilderness solo or with up to 3 friends. Push back the mist, reshape the world, craft weapons and gear, and fight to unearth what happened.

Build, host, and survive in a persistent multiplayer space sandbox set in the outer Sol system. Construct orbital habitats, manage fragile station systems, and keep your crew alive while expanding through zero-g, Saturn-ring danger, and player-built infrastructure.

Sinking Eternity is a single-player underwater exploration RPG. Survive extreme depths, hide from dangerous sea creatures, and uncover the secrets of a civilization lost for millennia.

Space Freighter it is a space cooperative game where you and your friends have to fulfill orders for cargo transportation in a distant galaxy. Cope with unforeseen events and survive! Dynamic gameplay and exciting missions await you!

In the vastness of space, you are a lone robot desperately trying to survive. Build, explore, and fight for your life as you face deadly threats in the asteroid belt. This hardcore game shows no mercy—dangers lurk at every step, ready to destroy you at any moment.