Top similar games like Celestial:
Celestial FREE
Celestial is an Open world Space survival game playing on a Spherical world of roughly 700km2. Survive in a hostile environment with a variety of roaming creatures. explore ancient ruins of an alien civilization, learn their technologies and use them to find a way back home.
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Subnautica$29.99
Descend into the depths of an alien underwater world filled with wonder and peril. Craft equipment, pilot submarines and out-smart wildlife to explore lush coral reefs, volcanoes, cave systems, and more - all while trying to survive.
GearStorm - Armored Survival$11.99
GearStorm - Armored Survival is a story-driven, open-world sci-fi survival adventure. Discover what led to the Phage, a deadly virus apocalypse and our escape to a alien world. Explore a vast alien planet, build your base, create your colony, acquire vehicles, weapons, and supplies to defend it.
Lost Assassin - A Tale of AI Corruption$5.99
(Updated May 2024 Loads of improvements) - 2D Side-Scrolling Action Shooter. The Assassin has a wide range of weapons, jetpack, mining, ragdoll physics. All original hand crafted artwork. Explore maze like levels with interactive elements and mine resources to buy and craft supplies.
Planet Centauri$14.99
Dive into an epic adventure alone or with friends! Explore hidden dungeons, capture and tame fearsome monsters, build and defend your village. Craft powerful weapons, master magical spells, and transform an planet into the cradle of a new civilization!
AI Olympius$12.99
Join the rebels in a third-person shooter with RPG elements and base-building mode. Fight against various combat drone models under the control of the supreme AI.
Aiyana$19.99
A procedurally generated open world survival craft game with traditional RPG mechanics such as talent trees and spells
Isles of Yore$19.99
Immerse yourself in a prehistoric ecosystem brought back from extinction. Survive and carve out your niche on islands teeming with danger and opportunity!
Signs of Life$9.99
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.
Keplerth$14.99
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!
Exotic Matter$19.99
A blend of Metroidvania adventure and procedural survival game, in Exotic Matter you will explore, craft, fight, solve puzzles and survive. As the sole survivor of a last-ditch expedition to an alien planet, your duty is to find a powerful alien material that could save Earth from destruction.
Avalon: The Journey Begins$9.99
Depart your home world of Avalon to embark on the longest journey ever attempted by mankind, to find the end of the universe. What is at the end of the universe and where is the end of the universe? This is where your journey begins.
Trespassers$7.99
Enjoy the nuclear apocalypse embodied by two idiots with TRESPASSERS! The fast paced shoot 'em up with some RPG flavour that let’s you enjoy that frantic button smashing vibe you are missing from the arcade machines.
Distant Bloom$19.99
From a world in ruins to a world in bloom. This serene management game lets you explore an alien planet where things have gone amiss. Harness the power of plants to restore the environment and build a flourishing community with your crewmates.
Little-Known Galaxy$19.99
Join Space Alliance as a new captain-in-training and work with your crew to solve the mysteries of an ancient relic found on the Grey Planet. Little-Known Galaxy is a cozy single-player RPG space adventure full of friendly characters, exploration, crafting, and farming.
Bot Colony$14.99
Bot Colony is the only game controlled by speaking or typing. You command robots to move and manipulate objects. The right questions unlock videos of the events they witnessed. No dialogue trees - the game unfolds 100% based on what you say, taking interactivity and immersion to a new level.
Forever Skies$29.99
A first-person survival game set on a post-apocalyptic, ecologically ruined Earth. Play solo or with up to 3 friends as you build, upgrade, and fly a high-tech airship. Scavenge resources, craft tools, and face dangers on the surface as you hunt for a cure to save humanity.
Psionic Awake$4.99
Psionic Awake is a Roguelike game . Collect resources during the day and defend against monsters at night. It emphasizes any combination of weapons, talents, treasures and partners.
Vortex: The Gateway$7.99
Vortex: The Gateway is an open world survival horror game with two game modes. If you want to survive then be alert, sneak, build and fight. Meanwhile life back on Earth changes dramatically. What changes? You will get bits of information through your adventure. Prepare for the worst!
1000 days to escape$4.99
Only 1000 days left until the end of the world. You have to realize the largest space program ever to save as many people as you can. Explore planets, colonize them, help people find a new home.
Outpost Zero$19.99
Outpost Zero blends the genres of Multiplayer Base Building Survival and Simulation games in a Sci-Fi universe. On a lawless alien world, robotic scouts are tasked with building an Outpost for human colonists. Command AI minions, colonize the planet, and survive the perils of Gaiya.
Under A New Sun$16.99
While searching for a new home, an unexpected failure in your ship has left you stranded on a planet surprisingly similar to Earth. Discover a vast open world, hunt for food, develop technologies, and build yourself a new home to survive!
Into the Stars$19.99
Take the role of Captain in this Space Survival Simulation as you explore a massive star system in search of a new home for humanity. Outfit your ship, hand pick your crew and set off on a journey through an open-world where you must scavenge resources, shelter civilians and outrun a hostile alien force.
Nelo$4.99
Nelo is the lightning fast, out of this world, genre-blending, bullet-hell, character-action epic meticulously crafted by the loving couple at Magic & Mirrors.
Space War Machine$0.99
In Space War Machine you warp to a new star for each battle, in a never-ending fight for dominance. Pause and slow time at will, control a vast armada of ships with powers! Explore and Terra-form planets. Warp to your far off opponents. Unleash your Ultimate units for total destruction! And more!!!
Space Travel IdleFREE
If you ever dreamed of exploring space at a relaxed pace, here's a journey designed for you.
ArmilloFREE
A sci-fi-style rolling 3D platformer.
Subnautica: Below Zero$29.99
Dive into a freezing underwater adventure on an alien planet. Below Zero is set two years after the original Subnautica. Return to Planet 4546B to uncover the truth behind a deadly cover-up. Survive by building habitats, crafting tools, & diving deeper into the world of Subnautica.
Dig or Die$11.99
Crash land on a hostile planet where you'll have to build the strongest defenses if you wish to live to escape from it. But be warned... this planet is merciless. Build strong, and smart; else physics may flood or destroy your only hopes of survival.
Gaia$19.99
A sci-fi base building survival game, featuring raids, agriculture, intelligent AI, natural disasters and more.
Alien Kingdom$4.49
Alien Kingdom is a first person city building and strategy game that weaves medieval and sci-fi atmospheres. You'll go adventuring and find villagers you can escort home to help expand your kingdom, and construct utility buildings like farms, houses & resources buildings, defensive structures like gates, towers & walls, and unit...
Space Engineers$19.99
Space Engineers is a sandbox game about engineering, construction, exploration and survival in space and on planets. Players build space ships, space stations, planetary outposts of various sizes and uses, pilot ships and travel through space to explore planets and gather resources to survive.
Evochron Legacy SE$24.99
Advanced Space Flight, Combat, Trading, and Exploration Simulation. Set in a vast explorable universe, Evochron Legacy offers freeform gameplay with many diverse objectives and paths to choose from.
Phoning HomeFREE
A tale of survival about two shipwrecked robots - ION and ANI - on their life-defining journey in this unique genre-mix of exploration, puzzle and survival.
The Solus Project$19.99
The Solus Project is a single player exploration adventure with survival elements. The adventure is set on a mysterious planet and is the spiritual successor to The Ball - 2010 PC Gamer Action/Adventure Game Of The Year...
Nano Nebula$14.99
Nano Nebula is a space exploration game for VR. Thousands of years in the future, explore limitless planets as you discover alien life, solve ancient puzzles, and battle hostile creatures.
Planetary Settlers$4.99
Planetary Settlers is a family friendly game with real benefits! Learn about the solar system as you play. Experience realistic gravity as you control Blue 42 on each planet, completing mini games, uncovering secrets, solving puzzles, and completing quizzes to enhance your abilities!
Satisfactory$39.99
Satisfactory is a first-person open-world factory building game with a dash of exploration and combat. Play alone or with friends, explore an alien planet, create multi-story factories, and enter conveyor belt heaven!
Collision Course$9.99
A comet is hurtling toward the planet! Sneak, scavenge and blast your way through an immersive prehistoric world filled with Humans, Dinosaurs, Droids and Mother Nature’s fury!
Boundless$19.99
Shape your citizen, forge your destiny and sculpt your world in this epic voxel sandbox MMO built on endless possibility.
Medieval Engineers$9.99
Medieval Engineers is a sandbox game about engineering, construction and the maintenance of architectural works and mechanical equipment using medieval technology. Players build castles; construct mechanical devices and underground mining. There is an entire planet to explore!
Volcan Defend the Tower$14.99
A solo development and the first game of Processor Game Studios presents "VOLCAN defend the Tower". A third person shooter on an open world sci-fi game, play as Sollum to defend your Volcan Towers against your enemies while exploring a planet earth with nature restored
Nova Lands$19.99
Nova Lands is a factory building, exploration, and island management game. Explore, engage in combat, and automate your industry. The planet you’re on is full of mysteries, creatures, people, and things to do. Welcome to your new home amongst the stars!
Piece Of Mind$14.99
Piece of Mind is an action packed first/third person survival sandbox game, challenging players instincts and strategic planning. Both player and pet will try to survive various sicknesses, the harsh environment, unpredictable climate and predators.
Grimalkin: Solar Defense Force$7.99
Command a Rag Tag fleet of Grimalkin Vessels against the evil from Beyond. Lead your Grimalkins to Victory or Suffer Ultimate Defeat and lose earth to the greatest evil known to Grimalkin-kind the Evil Ancient Space Faring Empire.
Magic and Legend - Time Knights$2.99
In Magic & Legend: Time Knights, players will follow the tale of the titular heroes as they travel through time to fight off alien invaders. Use Magic & Legends unique abilities to fend off the horde in this 8-bit style, action-adventure platform game.
The Tiny Bang Story$4.99
Life on Tiny Planet was calm and carefree until a great disaster occurred - Tiny Planet was hit by a meteor! The world fell apart and now its future depends only on you! Use your imagination and creativity: in order to restore Tiny Planet and help its inhabitants you will have to fix a variety of machines and mechanisms as well as solve...
Alien Planet Explorer$0.99
Alien Planet Explorer is a 2D side-scrolling platformer in which you have to find your way to the ancient sanctuary of an extinct civilization.
Crashlands$14.99
Fight and tame alien beasts, craft resources into menacing weaponry, befriend the outlandish locals, and go toe-to-chin with a world-domineering maniac.
Interstellar Pilot 2$0.99
The hit mobile game Interstellar Pilot 2 has come to Steam. Join the TEF forces heading to the Gatopean sector to find a new home for mankind. Play how you like in this open world space-sim developed by Pixelfactor.
たんぽぽプラネット-Dandelion Planet-$5.99
A heartwarming atmosphere,SF novel adventure game. Let's relax on another planet! You enjoy going to different places, interacting with space people, and trying part-time jobs.
Gaia Beyond$14.99
Gaia Beyond is a handcrafted 2D Action-RPG, an exploration mix built around the core features fighting, mining and trading. Your decisions are footprints within a vast non-linear solar system. Forge alliances among numerous factions and develop relations with hundreds of NPCs.