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.

Trapped In The Omniverse is a first-person survival game blending interdimensional exploration with adventure. Lost in Quantum Dynamics' Antechambers, you must restore the Cosmoportal to return home. Face creatures, overcome obstacles, and uncover the multiverse secrets.

A sci-fi survival game on a hostile alien world. As a lone robotic unit, manage resources, upgrade your systems, face extreme weather, and uncover the mystery of the three moons through choices that shape your fate.

Protect the lighthouse, destroy nests and complete tasks.

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.

HIRAETH is a sci-fi, first-person survival game set on a desolate, alien planet. Adapt to various threats while discovering the secrets of the abandoned, dystopian colony. You can choose between two distinct game modes that share common gameplay mechanics - sandbox and story.

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...

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.

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.

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.

Alien zombies survival game, open world survival.Game uses unreal engine 5

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.

Spiritus Astrum is a persistent, open-world, multi-player, roleplaying sandbox. 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.

An immersive exploration-heavy adventure full of mystery, danger, beauty, and consequence. Breach doors. Siphon fuel. Bypass security. Evade patrols. Follow the Filament until the last secret is revealed and the final question is answered.

The Guardians is a decision based RPG with flight simulator and first person shooter mechanics. Every decision you make has consequences, your actions will shape the outcome.

Set in the distant Gordon System in 3001, Nebula Complex Survival is an open-world, story-driven game. After crash landing on Dylan-4, explore, craft, and fight for survival. Discover a crucial radio station to signal for help while facing natural and artificial threats. Can you survive?

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!

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.

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.

Explore a planet with your friend or alone, upgrade yourself and try to return to Earth in your adventure that begins with your spacecraft sent by "Space-T" to explore other planets!

Heat Death is a sci-fi survival game where you can build, upgrade, and customize your battle train to explore and survive a frozen world! This train is not only your shelter and vehicle, but also your weapon and ally to face hostile drones, deadly storms, and hidden mysteries of an unknown world!

In The Apollo Project, you must survive against men and nature itself before it's too late. Harness the power of an alien artifact to infiltrate a top secret research facility to save the world from impending climate disaster. Can you make it out alive before it's too late?