Top similar games like Astronimo:

Build creative machines, rovers, drones or robots. Use them to gather resources, discover new machine parts, source energy, construct bases and battle enemy factions in a physics-based open world.

Take Your Creature From Zero To Galactic HeroGet out of your starship and turn your Spore creatures into legendary Space Captains. For the first time, beam down with your allies to take on action-packed, planetside adventures. Complete quests, collect rewards, and even create your own missions.

Explore, build, and master the art of automation. Build your base, discover colorful new worlds, and develop new technologies as you tame the far reaches of space and search for a way to return to Earth.

Welcome to the Red Planet! Mars Colonization Survival Simulator offers you the opportunity to take on the role of the first pioneers of Mars. You will find yourself in extreme conditions with limited resources and your mission is to build, develop, sustain and explore the mysterious Martian terrain.

You wake up alone in a damaged space station with no memories. To get out of here, you will have to build your own spaceship. But survival comes first: gather resources, build a base and a factory out of gear and steam, and explore hand-crafted planets with unique biomes and resources.

Drift alone through space in an empty ship and mine asteroids using your laser drone. Build machines, automate production chains, and upgrade your suit and jetpack as you slowly turn your drifting vessel into a self-running space industry.

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!

In a world full of Ape Men, you are a Banana Man struggling to survive in a space station. Build platforms, catch bananas and restore the space station to become the commander.

After a mysterious accident you are left are stranded, floating through space on a piece of a space station. Craft supplies and Hubs to expand what is now your home. But be warned space is a dangerous places where one mistake can mean certain death. Can you defy the odds and survive in space?

A chaotic co-op party game for up to 8 players. Battle your friends and prove who's the best beta robot!

In Kerbal Space Program, take charge of the space program for the alien race known as the Kerbals. You have access to an array of parts to assemble fully-functional spacecraft that flies (or doesn’t) based on realistic aerodynamic and orbital physics.

In Cosmic Remnants, you find yourself adrift in space with only a floating platform. Alone or with friends, survive by scavenging resources, upgrading your platform, and enhancing yourself with discovered body parts. Explore advanced bases and uncover the truth behind humanity's demise!

Journey through a world shifting from decay to bloom. From sprawling long silent machinery to a new kind of paradise. Become its glitchy robot custodian and explore this cozy 3D platform puzzler. A safe intriguing world built for curiosity and thoughtful interaction rather than fast paced action.

Play as an astronaut on our moon in the future. Your task is to prepare the moon for future colonies by terraforming. Collect resources, explore procedurally generated caves, build buildings and create a second world for you and our earth.

Embark on an epic space adventure in AstroMiner, where you must build a base, overcome challenges, and construct a space ship to return home from the asteroid belt.

In XenoHaven, gather resources to build shelters, enslave alien beasts to work for you, and run restaurants and shops. Delve into dark underground dungeons, defeat swarming insectoids and mighty bosses, and craft powerful gear to conquer the alien world.

Go to the Moon to explore its harsh nature and mysterious anomalies. Build your own lunar base, craft equipment, extract valuable resources and make many discoveries. Overcome the challenges of extreme lunar conditions, an oxygen-free atmosphere and much more unknown...

Welcome to Keplerth! Try to survive on a hostile alien planet in this 2D sandbox RPG, where you can choose to live alone or fight side by side with your friends in the online multiplayer mode. Survive, build, farm, fight, and explore your way to victory in this open-world adventure!

A sandbox battle simulator game where you can build your own shape-shifting warbots, program their AI, and watch them smash each other up on the battlefield! Join the battles yourself by taking control of the warbots! Use Steam Workshop to check out warbots created by players from around the world!

In the distant Milky Way galaxy, there hides a mysterious planet named Mozi Planet. This planet has a vast and boundless ocean, and every drop of seawater is shining with a mysterious light, as if telling the ancient interstellar secrets.

Stacks:Space is a space-themed base builder card game with rogue-like elements. Buy booster packs to get new cards, discover craft recipes by stacking cards together, create structures, manufacture drones and droids, defend your base from enemies, visit distant planets, and more!

The ultimate space capital ship combat compendium is the evolution of hard core space combat sims. The only game of its kind currently in existence.

Land on a new planet as a space refugee. Craft items, build bases, and battle aliens to survive. Pioneer your future in this online survival RPG.

In Spacebase DF-9, you'll build a home among the stars for a motley population of humans and aliens as they go about their daily lives. Mine asteroids, discover derelicts, and deal with the tribulations of galactic resettlement in Earth's distant future.

Tesera is a sci-fi sandbox game in a mysterious alien world. Explore an endless voxel world, defend yourself against aggressive creatures and drones, building your dream settlement alone or with friends.

Remains - survival in outer space orbiting the planet. Explore the area. Find a way to restore oxygen. Create tools for your needs. Beware of the dangers of outer space. Build your shelter in orbit and try not to die!

Kingdom Craft is a survival game in a world of floating islands with unique gravity. Craft items by combining different materials, explore, build, and progress to reach the ancient portal and return home.

Stranded on a hostile alien world, you must gather resources, craft tools, and automate production to survive. Build a base, fend off deadly wildlife, and uncover ancient secrets in this immersive sci-fi survival adventure. Will you conquer the planet or succumb to its perils?

Colonize rich planets with vegetation or deserted moons. Build a functional and prosperous colony. Take care of your colonists. Experience adventures on distant worlds or build a colony on planets in our solar system.

Astromine is a survival mining game about scavenging fully destructible planets. Designed for 1 to 4 players. Land on planets and gather enough materials to fight off alien creatures, fight robot factions, build structures and spaceships, and conquer the solar system

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.

Create and destroy on a scale you’ve never imagined!

Starlight Brigade is a realistic space action-adventure game with a precise combat system and full 6DOF controls. You command the Wayfarer, an aging light cruiser centuries past her time. Plot missile salvos, hunt down your enemy, design munitions, manage your crew, and send engineers to fix damage.

Yuri’s Resolve is a single-player factory-building game set in Mars' orbit. Salvage wreckage, mine Phobos, construct manufacturing systems, and forge a path back home. Operate from the immersive cockpit of your ship as Yuri’s Resolve delivers a bold, innovative take on the factory building genre.

Strata is a scientifically inspired astro-planetary sandbox where you influence the formation and evolution of entire worlds — your worlds. Discover, gather, and build on the surfaces of diverse planets, explore them in depth, and manage your systems beyond the orbital levels.

You were deep in uncharted space on a research mission. Disaster struck. Together with your friends, explore a mysterious asteroid field and mine whatever resources possible to build what you need to survive.