Top similar games like Spiritus Astrum:

The conquest of the Solar System has begun – prove yourself as a space colonist! Pilot the spaceship, choose the planet you wish to inhabit and build your new home. However, remember that there are no rules or laws in outer space. Don't underestimate the danger and stay vigilant – enemies are near!

Ostranauts is a hardcore noir space-sim. Manage life aboard your ship, and beware the cost of every decision you make. Scavenge and explore the boneyard. Create, build, and customise your ship. Hire a crew to help but remember, nothing is more certain than death and taxes.

Make a living for yourself in a city full of opportunity while you meet a variety of locals, explore unique locations, and work your way to the top in this open-world life simulator.

No Man's Sky is a game about exploration and survival in an infinite procedurally generated universe.

Medusa Frontier is a budget sci-fi survival game being developed with OpenGL & C++. Gameplay is currently limited to resource gathering and base building on a 1k terrain map.

After a century in cryosleep you find yourself stranded amidst the ruins of mankind’s first interstellar colony. Explore derelict ships and stations and harvest raw resources in search of air, fuel and other equipment. Or loot and pillage what you need from other survivors. The choice is yours!

In this multiplayer game you have to explore the Solar System in real scale. Control spaceships of the near future, explore planets, moons and asteroids, mine resources, fight for space domination and build the future of the universe.

Explore a seamless endless universe with an uncountable number of galaxies, stars, planets, and moons. Make friends or enemies with unique alien civilizations. Research upgrades for your vessel with scientific phenomena and alien tech that you've acquired.

Elysian Eclipse is a Sandbox Evolution Simulator, letting you evolve from an amoeba into a space traveling sentient being. Create your own creatures, buildings and vehicles to conquer procedural planets. Turn the galaxy into your personal playground!

Welcome to our sci-fi space adventure, where players take on the roles of a crew aboard a spaceship as they work together to survive in the vast and dangerous universe.

Explore, dig for resources, and build factories in a vibrant open world with quests for both technological and magical progression. Inspired by classic old-school Minecraft modpacks and featuring many new and unique features.

Mushroom Collector Simulator is a mushroom picking simulator that involves you in the hunt for many different mushrooms that grow in the wild. Collect mushrooms, enjoy walks through the forest, complete missions, upgrade your hut and equipment.

Sigma World Online - is an online sandbox with a huge world from many star systems. Choose who to be: space explorer, miner, merchant, farmer, culinary specialist, scientist, builder or hunter, or build your empire.

Explore a vast universe, uncover the mystery of humanity's demise, gather resources, build bases, and scan the unknown. Your journey awaits in this post-apocalyptic sci-fi adventure.

Survive and build your base on floating islands in a world transformed by chaos magic. Explore, gather resources, and construct your own flying ship to travel between islands.

Funorbit is a space survival simulation with realistic physics, resource gathering, crafting, and building. Navigate a vast universe using orbital mechanics, encounter drifting meteoroids, and construct space stations to survive.

Space Travellers is a unique open-world sandbox space simulator set in the year 2343. Travel the galaxy, trade, explore unexplored worlds, fight, build bases and factories, forge alliances and experience new adventures!

A single-developer passion project. A seamless full scale solar system. Thrilling action. Be part of an incredible journey as a Universe is built from the ground up!

Factory management and sandbox base building in zero-g environment. Survive, expand and then dominate space industrial market. Build large scale resource processing plant completely from nothing.

Space one has been postponed at this time.

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.

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.

Survirail is a survival game from a first-person perspective. Travel through space by train, explore space stations, collect resources, fight enemy androids and develop your mobile base to survive and discover the truth.

Shuttle World is a first person open world sandbox game, integrating exploration, construction, survival, entertainment and other elements. Players can embark on adventures alone in the game, exploring the entire vast planet! Various free gameplay, welcome to download...

Finnish Cottage Simulator is the ultimate cottage experience. Relax and enjoy the Finnish summer nature, go to the sauna, get drunk, grill food or play games with others!

Crash-land onto a unique and hostile alien world and begin your fight to survive. Face its inhabitants, upgrade your technology, create outposts & bases, and find a way to repair your ship. Explore the beautifully strange terrain, all while blasting and crafting your way off of the planet.

Above Earth is a science fiction survival game. Experience a struggle for life in the fragile artificial environment of a damaged space station.

WarpedSpace is a sci-fi survival adventure game set in deep space. A massive, open environment full of wonder and peril awaits you!

Immerse yourself in a prehistoric ecosystem brought back from extinction. Survive and carve out your niche on islands teeming with danger and opportunity!

As researcher with great ambitions, and lack of talent, you are sent to a newly discovered planet far away from civilization. In this VR first person survival, you will need to build an outpost and survive the hostile environment. While exploring the planet, unveiling its secrets.

A virtual world Primus with different cultures and worldviews. At Primus, you can enjoy a life different from the real world. Why don't you come to the virtual world Primus for new encounters and unknown experiences that you really wanted to do? This game is an open world walking simulator.

An open World Space Logistics Simulator set in the future where humanity have just started the BIG colonization effort of a new found world. Manage fuel economy and mine ores

Wildstrive - is an open-world first-person survival game. Craft tools, build a camp, harvest crops, explore the land, tame and fight wild animals. Challenge nature and solve the mystery of the lost island!

Explore a scientifically accurate Milky Way galaxy and discover distant uncharted worlds, while having unrestricted access to every deck of your Magellan Class deep space exploration vessel. Interact with numerous fully simulated ship systems, or simply relax in the bar and watch the stars drift by.

Star shelter is a space survival game built from the ground up for VR. You are stranded in space, you must climb around in Zero-G, explore, scavenge, craft, hack and fight to survive. You have to build, arm and upgrade your own space station in order to escape the cosmic graveyard.