Games Like OUTER WATCH

Enter an infinite‑loop laboratory and retrieve uncontaminated extraterrestrial samples, and ultimately achieve your mission objectives.

Why similar: Space Sim 22.3%, Immersive Sim 17.1%, Space 13.6%, Horror 9.3%, Psychological Horror 8.6%

Alone in orbit with a corpse and no way to reach Earth, play as an astronaut who must keep a defunct space station aloft. Maintain the onboard systems, deal with the constant threat of space junk, and navigate the dark halls in zero-gravity. Day by day more systems fail, and the void draws closer.

Why similar: Space Sim 31.4%, Immersive Sim 17%, Simulation 11.7%, Horror 9.4%, Space 9.3%

Boötes is a Space Sim where you get to jump on astroids. Collect Crystals, Unlock New Abilities, Find Secrets to Unlock New Suits, and Much More. You are all alone in The Boötes Void where you find mysterious crystals that can help fuel your space shuttle so you can visit the Cold Dark.

Why similar: Space Sim 38.4%, Horror 11.9%, Simulation 11.9%, Immersive Sim 11.7%, Futuristic 7.3%

Welcome to your new career as a gas station attendant in the deepest, darkest corner of space! Serve adorable ships, count your cash, and expand your diesel empire. It's a simple, satisfying job. Just... ignore the whispers in the vents. Everything is fine. Probably.

Why similar: Space Sim 34.4%, Immersive Sim 18.1%, Simulation 17.1%, Space 16.4%, First-Person 5.5%

If this message still exists, then we didn’t. Restore the station’s emergency power, explore abandoned laboratories and industrial sectors, solve the failures we left behind, and remember—every generator you restart brings the station closer to life… and something closer to you

Why similar: Space Sim 23.7%, Space 14.5%, Immersive Sim 12.1%, Horror 10.7%, Psychological Horror 9.4%

Fly real astrodynamics from an Apollo-era DSKY. Plan Lambert transfers, mine asteroids, build a fleet, and survive a 38-body solar system where every trajectory is solved from Kepler's equation. No autopilot, no cheating.

Why similar: Space Sim 33.7%, Immersive Sim 16.7%, Simulation 16.5%, Space 14.7%, Exploration 5.6%

Explore a star system while surviving the harsh conditions of space and whatever lurks in the darkness.

Why similar: Space Sim 26.1%, Space 20.8%, Horror 12.2%, Psychological Horror 10.7%, Dark 10.4%

A futuristic sci-fi persistent universe exploration game with one million stars and 18 million planets and moons. Fly your ship to any star and explore its solar system. Claiming stars, planets and moons will make them yours forever - other players will see your discoveries and you will see theirs.

Why similar: Space Sim 38.5%, Simulation 19.6%, Space 16%, Futuristic 6.6%, Exploration 6.4%

Realistic simulation of spaceflight in a full sized Solar System, with all the planets and their major moons. using real forces, distances, velocities and time. Chapter 1: The Apollo Days. Incredibly detailed Apollo Program missions starting with Apollo 8 lunar orbit missions.

Why similar: Space 39.1%, Space Sim 33.5%, Simulation 27.4%

Haunted Space is a dark-sci-fi multiplayer co-op where you become a raider, a lethal bio-ship hybrid forged for combat. Join forces with your allies to hunt down the Colossi, titanic creatures that dominate the void. Evolve, fight, and survive in a ruthless alien galaxy.

Why similar: Space Sim 26.3%, Space 22%, Immersive Sim 12.6%, Horror 11.1%, Psychological Horror 7.3%

Our Empire is spreading thin through the galaxy. Your responsibility is to assist your comrades on our newly founded colony. Keep your station operational at all cost. Your pivotal role may shape destiny. And don't forget: Humanity Above All!

Why similar: Space Sim 25.2%, Space 18%, Dark 12.2%, Immersive Sim 11.3%, Simulation 7.7%

Forced into working as an Anomaly Observer in a space stockroom, you must explore, observe carefully, and report inconsistencies. Earn Credits to buy upgrades, but beware: hideous horrors are creeping in the dark.

Why similar: Psychological Horror 15.9%, Immersive Sim 15.9%, Horror 15.3%, Dark 10.8%, Simulation 8.4%

Spaceflight add-on for Microsoft Flight Simulator X

Why similar: Space Sim 36.4%, Space 33%, Simulation 30.7%

This is a single player game. You play a rebooted android in a broken shuttle. You need to fly the ship, keep the energy systems functional, mine some fuel from asteroids and feed the FTL drive with energy.

Why similar: Space Sim 34.3%, Immersive Sim 23.4%, Simulation 11.4%, Space 8.1%, Survival 7.5%

Caught in the middle of a violent conflict on the fringe of the galaxy — your ability to survive will depend on your piloting skills and combat savvy as a mercenary space fighter. But, as you explore the vastly detailed world of Tachyon: The Fringe, you will often find that the most powerful weapon on your ship is in your head.

Why similar: Space Sim 45%, Space 29.9%, Simulation 25.1%

TeepyTime is a shared ambient application. You appear as a glowing orb in space alongside other connected players. There are no objectives. Each player's orbit is procedurally generated and unique.

Why similar: Space Sim 33.1%, Space 27.8%, Immersive Sim 23.2%, Simulation 12.8%, Atmospheric 2.5%

A short horror game about piloting a rover across a dead planet on humanity's most desperate mission.

Why similar: Space Sim 25.4%, Horror 16.5%, Simulation 14.2%, Space 8.9%, Dark 8.7%

A hard sci-fi survival sim where each decision costs power. Every system drains your dying reactor. Pilot a crippled spacecraft across a real-scale solar system using true orbital mechanics, manage critical systems, and fight to reach Earth — where space itself is the only enemy you need.

Why similar: Space 27.6%, Space Sim 21.2%, Simulation 18%, Survival 11.2%, Immersive Sim 11.1%

Nebulis Entity is a first person spaceship crew simulator, with support for online co-op. Maintain your vessel, track down and decode alien signals, and venture as far as you can - while doing your best to prevent your ship from falling apart around you.

Why similar: Space Sim 29.6%, Space 28.4%, Simulation 11.3%, Survival 10.3%, Exploration 7.4%

In celebration of the 25 yr anniversary of the first release, this compendium contains all 4 games in the Battlecruiser 3000AD series which was first released in 1996.

Why similar: Space Sim 31%, Space 20.6%, Immersive Sim 12.6%, Simulation 10.9%, Futuristic 7.5%

In the midst of a seemingly hopeless war among the stars, take control of highly customizable spacefighters to experience classic space combat action throughout a story-driven campaign.

Why similar: Space Sim 44.8%, Space 30.8%, Simulation 11.1%, Sci-fi 7.7%, Atmospheric 3.5%

You've barely managed to escape your exploding spaceship. Now in an old escape pod, you hurtle through space at the mercy of the cosmos. With no knowledge of the pod’s complex systems, your life depends on a technical manual and your own wits. How long can you survive?

Why similar: Space 26.7%, Space Sim 22.9%, Simulation 11.6%, Immersive Sim 11.4%, Survival 10.1%

Spacebourne is an open space exploration game with Rpg elements. Its world consists of different factions at war. You as an expert pilot need to choose your side or be on no one's side and create a force of your own. Load up your weapons, Ready your ship and warp to adventure.

Why similar: Space 42.4%, Space Sim 32.1%, Simulation 18.8%, Exploration 4.6%, Indie 2.1%

Our goal is to depict the possibilities of space exploration & combat within a realistic environment- to emphasize the "science" in science-fiction. Key features to include: proper orbital mechanics for all objects in space, detailed ship system control, functionality, inter-dependency & damage reaction.

Why similar: Space Sim 53.5%, Simulation 23.7%, Space 22.8%

Anomaly Operation is a sci-fi horror observation game. Trapped in the security room, you must monitor a derelict ship via CCTV. Report anomalies and avoid lethal threats. Survive until 03:00 AM.

Why similar: Space Sim 32.8%, Immersive Sim 17.3%, Simulation 17.2%, Dark 8.5%, Horror 5.5%

In the distant future, the X universe faces a period of profound and irrevocable change. While the universe stumbles towards an uncertain future, countless adventures await as new enemies rise in search of power.

Why similar: Space 46.6%, Space Sim 23.8%, Simulation 19.4%, Sci-fi 8.3%, Exploration 0.7%

RESBS is a first-person space survival simulation where you and your friends cooperate to survive in zero gravity on a space station!

Why similar: Space Sim 29.7%, Space 27.8%, Simulation 11.7%, Survival 10.2%, Exploration 7.2%

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!

Why similar: Space Sim 31.9%, Space 22.8%, Immersive Sim 14.7%, Simulation 9.7%, Sci-fi 6.3%

Will you make the grade and save the planet? Become a cadet on your first day of training in this 3rd person space combat simulator.

Why similar: Space Sim 33.2%, Simulation 31.5%, Space 28.4%, Sci-fi 7%

Darkstar One offers a fantastic amount of freedom of choice. The story-based missions gradually lead you deeper into the galaxy to new races, new technologies and ever stronger opponents. Explore a vast array of solar systems in search of hidden artifacts of ancient races, essential objects for upgrading your ship--the Darkstar One.

Why similar: Space 41.3%, Space Sim 36.3%, Simulation 8.6%, Sci-fi 8.2%, Exploration 5.1%

A "small" universe simulation, where you play as a black hole and try to absorb the whole universe. You decide the size and shape of the universe. Could also be used as a less meaningful CPU benchmark.

Why similar: Space Sim 44.4%, Space 30.3%, Simulation 17.5%, Atmospheric 3.8%, 3D 2.3%

Opportunity is an atmospheric narrative game where you become the famous NASA rover and brave the many obstacles littering the desolate red planet in order to finally complete its mission.

Why similar: Space Sim 34.8%, Simulation 17.5%, Immersive Sim 16.8%, Space 13.9%, Exploration 5.9%

Humanity never made it past its own star. Fly a scavenged wreck through what it left behind: fight, salvage, trade, read the void. Knowledge opens doors that credits cannot, and every run brings you closer to the hull that decides your path. A hand-built system, act by act.

Why similar: Space Sim 36.6%, Space 24.7%, Simulation 18.8%, Exploration 6.1%, Sci-fi 5.6%

SurviRail is a game about exploration and managing your own space train. Expand your train cars, upgrade your engines, collect resources, and discover new locations in the unknown space.

Why similar: Space Sim 33.2%, Space 18.7%, Immersive Sim 15%, Simulation 11%, Survival 6.8%

Trade your wares and eliminate the competition in a cutthroat world. Buy new ships and stations to mine and haul resources. Explore the vast emptiness of space.

Why similar: Space Sim 45.2%, Space 34.1%, Simulation 14.3%, Exploration 4.9%, Indie 1.5%

Build rockets and shoot them into space. Once you reach orbit, you are halfway to explore anywhere in the Solar System.

Why similar: Space Sim 36.9%, Space 35.8%, Simulation 17.2%, Exploration 7.1%, 3D 2%

Step into the grease-stained boots of a debt-ridden Patcher in a gritty industrial space station. Diagnose critical failures, strip panels with your automatic vortex drill, and replace complex components to bring massive ships back to life. Restore power, clear the smoke, and pay off your debt.

Why similar: Space Sim 21.1%, Simulation 20%, Space 16.4%, Immersive Sim 11.9%, Dark 11%

The story takes place in the distant future. You will play a captain of a star ship and go into deep space. You need to manage your resources carefully. In the game, you can investigate the outliers of various planets, discover the wonders of the universe or learn the stories of lost civilizations.

Why similar: Space Sim 40.3%, Space 33.8%, Futuristic 9.2%, Exploration 6.9%, Simulation 4.8%

A casual space simulation game where you perform orbital manoeuvres on satellites to change their orbit and complete missions.

Why similar: Space Sim 39.6%, Space 25.5%, Simulation 22.9%, Futuristic 5.8%, Sci-fi 5.5%

A short horror game where you control a decaying spacecraft exploring distant star systems.

Why similar: Space 30.4%, Space Sim 28.1%, Horror 16.9%, Sci-fi 8.1%, Exploration 5.6%

Detect anomalies and survive in a space module! Can you break the experiment loop and reveal all the secrets?

Why similar: Space 18.6%, Immersive Sim 16.9%, Dark 13.6%, Psychological Horror 11.4%, Horror 10.4%

The Battle of Sol is an intense space action game where you participate in epic capital ship battles, thrilling dogfights, space station raids, and much more as you liberate humanity's solar system from enemies determined to bring us to its fiery end.

Why similar: Space 33.3%, Space Sim 32.1%, Simulation 25.4%, Sci-fi 6.7%, Indie 2.4%

Explore a precisely recreated lunar surface built from real data and a JAXA-backed simulation.

Why similar: Space Sim 43%, Space 27.8%, Simulation 21%, Exploration 7.3%, Singleplayer 0.9%

Embark on humanity’s greatest journey to the Moon with Lunaris. Take on the role of an astronaut navigating NASA’s Apollo missions, from the roaring launch of Saturn V to stepping on the lunar surface. Experience the triumphs, challenges, and legacy of space exploration in this immersive simulator.

Why similar: Space Sim 36.1%, Simulation 20.6%, Immersive Sim 18.8%, Space 13.3%, First-Person 4.9%

The world's first science-based photorealistic interactive 3D planetarium that models the entire Universe, using procedural generation for uncharted areas.

Why similar: Space Sim 43.3%, Space 25.5%, Simulation 23.4%, Exploration 7.1%, Singleplayer 0.8%

In "Space Mechanics: Repair | Hiring | Craft" you are the owner of a space repair station in which you have to work. Repair spaceships, get money for it, hire them and create items for sale or for your own purposes.

Why similar: Space Sim 39.6%, Space 24.4%, Simulation 13.6%, Futuristic 9.4%, First-Person 6.8%

Explore and unravel the mysteries of Rheksetor!

Why similar: Space Sim 30.9%, Space 24.7%, Immersive Sim 18.5%, Simulation 9.2%, Exploration 6.2%

Beyond There is an immersive first-person horror game where you explore the eerie house of a missing friend. As you uncover dark secrets and confront terrifying encounters, your sanity will be tested. Can you uncover the truth behind their disappearance, or will the house consume you too?

Why similar: Dark 27.7%, Simulation 21.9%, Horror 20%, Psychological Horror 16.5%, First-Person 11.8%

A first-person psychological horror game where your own fear shapes the world around you. Explore a mysterious space station, uncover hidden truths, and stay calm as the game reacts to your every move and emotion.

Why similar: Space 24.2%, Immersive Sim 16.5%, Horror 13.3%, Psychological Horror 11.8%, Dark 9.8%

A short cosmic horror game where you remotely operate a land rover through an unknown planet labeled the silent zone.

Why similar: Space Sim 28.3%, Immersive Sim 13.1%, Horror 12.5%, Psychological Horror 10.7%, Simulation 8.6%

Survive and explore space in Astrobound! Visit strange planets, encounter cosmic calamities, and keep your crew alive as you journey through the stars in a retro-inspired whimsical space adventure.

Why similar: Space Sim 27.9%, Space 24.6%, Immersive Sim 19%, Survival 9.2%, Exploration 6.4%

Subdivision Infinity is an immersive and pulse pounding sci-fi space shooter featuring stunning graphics and tight spaceship game play. Hunt down and destroy enemy spacecraft, crush capital ships, mine asteroids for rare minerals, and find blueprints to craft amazing new vessels!

Why similar: Space Sim 36.6%, Space 33.9%, Sci-fi 8.3%, Exploration 5.8%, Simulation 4.9%

Experience fast action, thrilling levels, spectacular explosions and lots of pew-pew-pew. Star Horizon is a reboot for the on-rails space shooter genre.

Why similar: Space 33.3%, Space Sim 24.3%, Simulation 13.9%, Sci-fi 7.8%, Survival 7%

Space Station Escape is a anomaly horror game.Players take on the role of an astronaut wanting to escape from a spaceship running out of oxygen.

Why similar: Space Sim 32.2%, Space 28.8%, Horror 9.5%, Futuristic 7.1%, Sci-fi 6.5%

A space courier game about atmosphere, survival and navigation. Deliver cargo between planets and stations in a lonely, dangerous star system where every journey depends on your skill.

Why similar: Space Sim 25%, Space 19.2%, Immersive Sim 12.1%, Dark 10.2%, Simulation 8.7%

Star Squadron is a narrative-driven space combat simulator built for maximum immersion. Command your wing with freeform voice recognition and experience a dynamic campaign that calls you by name using our proprietary Voice Mimic System. Don't just play the game—live it.

Why similar: Space Sim 33.4%, Space 24.9%, Immersive Sim 17.6%, Simulation 8.9%, Futuristic 6%

Rover Simulator allows you to experience the cosmos through the lens of a Rover. Explore celestial bodies across the galaxy in the pursuit of evidence pointing to signs of life as well as gaining a broader understanding of the universe to pave the way for colonization beyond the Earth.

Why similar: Space Sim 36.6%, Simulation 17.4%, Immersive Sim 16.9%, Space 12.3%, Exploration 6.4%

Asteroid Station is about mining asteroids, but that's not all! Battle hostile machines, defeat powerful bosses, and upgrade your ship as you push deeper into dangerous sectors in this top-down space mining and combat game.

Why similar: Space 35.8%, Space Sim 27.5%, Immersive Sim 13.7%, Simulation 6.7%, Sci-fi 4.7%

Command the CSV Leonidas in authentic capital ship warfare. Lead from the bridge or take direct control as war erupts in the Orion Spur. Your ship. Your crew. Your orders.

Why similar: Space Sim 25.7%, Space 25.5%, Immersive Sim 23.8%, Simulation 10.1%, Sci-fi 7.4%