Top-Rated Free Space Games on Steam

66 free Space games with 500+ reviews and a 70%+ positive rating, newest first.

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Control, I'm Not Coming Back - Players say: After an accident strands a space cadet in the void, walk through shifting worlds, meet Voyager 1, and shape a branching story. Players like: Hopeful Story · Emotional Impact · No Reverse Movement ·
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Control, I'm Not Coming Back is a short and emotional narrative game about a lost astronaut searching for a reason to keep going forward while facing the emptiness of space. Inspired by the Hopecore aesthetic, it’s a story about positivism, friendship and our human connection with Voyager 1.

Scratch Inc. - Players say: Scratch cards for points, upgrade a growing grid, automate earnings, and prestige through successive tiers of an expanding empire. Players like: Layered Progression · Automation Unlocks · Satisfying Number Growth ·
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Build an Empire, From Scratch, in this Scratch Card Idle/Incremental game.

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Sep 17, 2025
91% 👍
of 2.2k
Galaxy Idle Clicker - Players say: Pilot a ship through enemy-filled space, gather resources and prisoners, then automate upgrades and reset for lasting bonuses. Players like: Layered Long-Term Progression · Useful Automation · Rewarding Prestige Resets ·
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Embark on an interstellar journey with Galaxy Idle Clicker! Conquer galaxies, upgrade your spaceship, and face off against a myriad of enemy ships. With engaging minigames, powerful upgrades, GIC delivers an unparalleled idle space adventure. Join the cosmic conquest today and dominate the universe!

Once Upon a Galaxy - Players say: Choose a myth-and-fairy-tale captain, recruit and position a crew, then watch your card-built team auto-battle rival boards. Players like: Quick Matches · Card Synergies · Distinctive Card Art ·
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ONCE UPON A GALAXY is an easy to learn Card Battler with incredible strategic depth and near infinite fun! Which of your favorite characters from myth and fairy tale will you choose?

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Jul 29, 2025
78% 👍
of 735
waxweaver - Players say: Explore and mine a procedurally generated square planet, craft gear, build a home, and fight bosses under shifting gravity. Players like: Distinctive Gravity · Straightforward Progression · Charming Pixel Art ·
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A short sandbox rpg game that takes place on a square planet. Explore the world, gather resources, build a home and become stronger.

Finn Dorset's Institute For Livestock Replication - Players say: Clone moon sheep, sell their wool, and upgrade an alien farm as its landscape changes in this incremental idler. Players like: Hand-Drawn Art · Changing Farm Visuals · Absurd Humor ·
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An animated incremental game about cloning livestock. Make as many moon sheep as you can. Research technology, upgrade your operation and become a clone farm billionaire!

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Oct 2, 2024
84% 👍
of 1.3k
Super Sus - Players say: Crew members finish ship tasks and vote out suspected impostors as hidden killers sabotage the mission and neutral roles pursue goals. Players like: Varied Roles · Social Deduction · Fun With Friends ·
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Welcome to join the multiplayer social deduction game - Super Sus! Engage in intense gameplay with global players, as you strategize to safeguard your spaceship from the cunning Impostors determined to sabotage the mission and eliminate everyone aboard!

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Jul 30, 2024
71% 👍
of 3.0k
Ocean World: Eden Crafters Prologue - Players say: Survive an ocean planet’s giant waves by gathering resources, crafting tools, automating production, and transforming the terrain. Players like: Factory Automation · Base Building · Relaxing Atmosphere ·
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Survive, craft, and automate in this free prologue set on one of the planets you can transform in Eden Crafters, an open-world game where you play solo or with friends to turn a hostile planet into a habitable haven for humanity.

100 Space Cats - Players say: Search a hand-drawn space illustration for 100 hidden cats, using zoom, hints, and color or monochrome viewing modes. Players like: Relaxed Cat Search · Cute Space Theme · Quick Sessions ·
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👨‍🚀🌌Join the cutest space adventure with Cats in Space! 🪐🚀 Explore charming hand-drawn space locations and adorable cosmo-cats on a quest to find 100 hidden kitties. 🕵️‍♂️❌ Can you find them all? 🕵️‍♂️🐈✅

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Jun 16, 2024
71% 👍
of 1.3k
100 Aliens Cats - Players say: Scan a hand-drawn alien scene, zoom in, and click 100 hidden cats, using hints when you need help. Players like: Cute Alien Artwork · Relaxing Search · Quick Casual Sessions ·
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👽🛸 100 Aliens Cats - 🐾 Join the cutest adventure in the Aliens themed locations full of cats! Explore the charming hand-drawn artwork of aliens places and Cats as you embark on a quest to find 100 adorable cats hidden throughout the game. 🕵️‍♂️❌ Can you find them all? 🕵️‍♂️🐈✅

Astrometica: Prologue - Players say: Stranded in space, gather materials, craft survival gear, follow signals, and build a base to explore asteroid fields. Players like: Exploration With Purpose · Atmospheric Space Setting · Base Building ·
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Astrometica: Prologue is the free game about surviving in space. You need to use your skills and tools to stay alive. There are many challenges to face, and you need to fight to survive. You also need to build a new base in space.

Classic Marathon - Players say: As a security officer aboard an alien-attacked colony ship, fight through its decks, solve route puzzles, and uncover the story. Players like: Terminal-Based Story · Sci-Fi Atmosphere · Tactical Gunplay ·
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From the team that brought you Aleph One, the classic sci-fi FPS Marathon from Bungie on Mac revived for modern hardware by the fan community.

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May 10, 2024
91% 👍
of 1.3k
Monster Tiles TD: Tower Wars - Players say: Build a shifting maze from earned tiles, then evolve monster towers and combine their abilities to stop invading space pirates. Players like: Custom Maze Building · Tower Choices · Replayable Tile Runs ·
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Free Tower Defense game with unique roguelike elements. Custom base building mechanics allow you to create your own base and maze with tiles earned after each wave. Unleash a variety of monsters, each with its own evolution path and unique skills, and evolve them into legendary creatures.

Gatekeeper: Infinity - Players say: Fight machine enemies across alien locations in a top-down roguelite shooter as you seek the stolen Heart of the Universe. Players like: Co-op With Friends · Distinctive Enemy Designs · Character Challenges ·
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Prologue version of the game Gatekeeper. Gatekeeper: Infinity is a fast-paced rogue-lite shooter where you'll search for the stolen Heart of the Universe and battle machine enemies! Play solo or join forces with friends in co-op mode.

Planet S - Players say: Colonize a procedurally generated solar system, supply growing cities, and pursue scientific or military power alone or with others. Players like: Absorbing Expansion · Playing With Friends · Multi-Planet Building ·
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Planet S is a real-time strategy game where your goal is to colonize multiple planets in a solar system to advance your civilization, build a city and supply it to grow your faction.

Unnamed Space Idle - Players say: Pilot an upgradeable ship through alien fleets, matching weapons to enemies while layered idle systems grow its combat power. Players like: Interconnected Upgrade Systems · Strategic Build Optimization · Steady Unlocks and Progress ·
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Destroy endless waves of alien ships that have all but wiped out humanity in this long form, unfolding, sci-fi idle game. Customize your ship with different weapons and defenses to defeat specific enemy types and utilize a ton of different systems to increase your overall power.

South Scrimshaw, Part One - Players say: Follow a newborn Brillo whale through an alien ocean in a documentary-style visual novel with illustrated biology and field notes. Players like: Detailed Hand-Drawn Art · Imaginative Alien Biology · Documentary-Style Story ·
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South Scrimshaw is the story of a newborn whale in a vast alien ocean. It is a richly illustrated experimental visual novel, written in the style of a nature documentary.

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Jun 9, 2023
99% 👍
of 1.6k
Quasimorph: End of Dream - Players say: Lead a PMC through turn-based raids on space facilities, fight mercenaries and demons, and extract valuable gear to your ship. Players like: Prologue Story · Tactical Challenge · Loot Design ·
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Quasimorph: End of Dream is the first chapter of the extraction turn-based RPG Quasimorph. Confront your fears in brutal shootouts with PMC -fighters and demons and try to survive to complete your mission and bring the gear back to your spaceship!

Pixel Starships - Players say: Design a pixel-art starship, assign its crew and AI, then upgrade, explore, and battle other players in a persistent universe. Players like: Ship-Building Depth · Customizable Crew AI · Strategic Combat ·
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Pixel Starships is an FTL-style online sci-fi strategy builder and management game with a competitive PVP tournament. Set in the retro galaxy, your role is to explore space, meet aliens, and develop your ship, crew and AI. The game contains deep strategic and 4x elements. PSS is community-driven.

Antimatter Dimensions - Players say: Grow antimatter through linked dimensions, reset for permanent upgrades, and unlock increasingly complex idle and strategy systems. Players like: Unfolding Progression · Strategic Challenges · Deep Number Systems ·
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Earn antimatter through dimensions! Gain Infinite antimatter to collapse the universe!

Chicken Invaders Universe - Players say: Join humanity's fight against vengeful space chickens in a top-down shooter of missions, ship upgrades, and galactic exploration. Players like: Childhood Nostalgia · Classic Shooting · Silly Chicken Humor ·
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A deliciously addictive core of finger-blistering shooting action, surrounded by delectable morsels of galactic exploration, spacecraft customization, and community competitions.

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Dec 15, 2022
91% 👍
of 3.8k
Idle Spiral - Players say: Grow a mathematical spiral with upgrades and resets, then use its power in battles against other spirals and constrained challenges. Players like: Mesmerizing Spiral Growth · Engaging Spiral Battles · Offline Speed Boosts ·
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This is a beautiful "Idle", "Incremental" game based on spirals and mathematics. Your goal is to make the spiral grow farther and farther from the origin. The game is very simple, but it is very deep and can be enjoyed for a long time!

Prosperous Universe - Players say: Run a spacefaring company by choosing planetary bases, building production chains, moving cargo, and trading in a player-run economy. Players like: Economic Simulation Depth · Supply Chain Planning · Player-Driven Markets ·
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In Prosperous Universe start your galactic empire by trading on the real-time market exchange with other real players. Build your 1st base from humble beginnings & watch as your business flourishes with complex supply chain strategies. Economics, politics & realism fuel this immersive business MMO.

Mushy - Players say: Play a round-based first-person shooter: attackers plant a bomb, defenders try to defuse it, and both sides fight. Players like: Playing With Friends · Funny Trickshots · Simple Shooter Fun ·
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Mushy is a round based first person shooter. The attackers plant a bomb and the defenders defuse it; all while engaging in armed combat!

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Feb 15, 2022
86% 👍
of 1.7k
Obama - Players say: Explore an alien world, battle its beasts with bullet-hell combat, and use a grappling hook to tackle platforming puzzles. Players like: Grapple Platforming · Boss Encounters · Playing With Friends ·
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Obama is a third person action-adventure game with bullet-hell inspired combat. Cleanse an unknown alien planet of the beasts that now inhabit it. Find out who is in command and reveal their ultimate goal.

The Planet Crafter: Prologue - Players say: Survive on a barren planet by gathering resources, building terraforming machines, and gradually creating conditions for life. Players like: Visible Planet Changes · Relaxing Base Building · Steady Terraforming Progress ·
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Experience the first stages of terraforming an entire planet in this space survival open world terraforming crafting game prologue. Explore, survive, collect, build your base then create oxygen, heat and pressure to make an hostile planet livable for humanity.

Cell to Singularity - Evolution Never Ends - Players say: Tap to earn resources, evolve life from single cells into civilization, and unlock dinosaur, space, and rotating science simulations. Players like: Science Learning · Evolution Themes · Idle Progression ·
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The epic story of evolution, technology, humanity, and dinosaurs is yours to tap.

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Nov 3, 2021
89% 👍
of 28k
Lemnis Gate - Players say: A turn-based FPS where you control deep-space operatives across five 25-second rounds, planning around actions from earlier turns. Players like: Original Time-Loop Concept ·
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Lemnis Gate is the revolutionary turn-based combat strategy FPS taking place in a time loop. Master the unique abilities of powerful deep-space operatives and compete in mind-bending four-dimensional battles.

Samorost 1 - Players say: Guide a space gnome through wordless point-and-click puzzles to divert an asteroid threatening his drifting home. Players like: Distinctive Art Style · Dreamlike Atmosphere · Gentle Scene Puzzles ·
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Explore the beginnings of the Samorost series in the space gnome’s original bite-sized adventure, formerly released in 2003. Now with remastered sounds, enhanced graphics, and new music by Floex.

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May 20, 2021
96% 👍
of 5.5k
Exo One: Prologue - Players say: Pilot an alien craft across strange worlds, using gravity, momentum and shifting shapes to roll, launch and glide toward a distant beam. Players like: Gravity-Driven Movement · Vast Alien Landscapes · Calm, Dreamlike Atmosphere ·
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A strange signal... an alien craft... an interplanetary, gravity-defying journey through space and time. This is the prologue for Exo One.

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Aug 21, 2020
94% 👍
of 746
Occupy Mars: Prologue (2020) - Players say: At a remote Mars research station, gather resources and manage supplies before an approaching dust storm and nightfall. Players like: Mars Survival Premise · Base-Building Systems · Mars Atmosphere ·
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Occupy Mars: Prologue is an old introduction to the world of Occupy Mars in which you have to use your brain in order to survive. The Prologue tells a separate story in a closed location and shows a sneak-peek of the full game mechanics.

STAR WARS™: The Old Republic™ - Players say: Live a voiced Star Wars saga through one of eight class stories, making choices, exploring planets, and joining online battles. Players like: Eight Class Stories · Fully Voiced Dialogue · Solo Story Play ·
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STAR WARS™: The Old Republic™ is a free-to-play MMORPG that puts you at the center of your own story-driven saga. Play as a Jedi, Sith, Bounty Hunter, or one of many other iconic STAR WARS roles in the galaxy far, far away over three thousand years before the classic films.

Unfortunate Spacemen - Players say: Repair a failing space outpost, expose a disguised monster, or hunt the crew in a multiplayer sci-fi deduction game. Players like: Chaotic Social Deduction · Fun With Friends · Funny Paranoia ·
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An online multiplayer game about shapeshifting deception and betrayal! As a hapless, brave spaceman employed by The Company you'll work diligently to defend and be rescued from failing outposts, but not everyone around you is who they claim to be...

We Went Back - Players say: Wake alone on a deserted space station, revisit shifting corridors, gather clues, and crack the exit code in a horror time loop. Players like: Station Atmosphere · Changing Loops · Simple Puzzles ·
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We Went Back is a time-looping horror game in which you wake up in an abandoned space station utterly alone. The exit door is locked and you must find a way to escape what lurks within. Find clues, experience dynamically changing environments and confront terror in order to find a way out.

Destiny 2 - Players say: Defend humanity's Last City as a Guardian, battling through sci-fi missions, co-op raids, loot hunts, and PvP firefights. Players like: Smooth Gunplay · Memorable Raids · Story And Atmosphere ·
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Explore the mysteries of Sol and experience exhilirating first-person shooter combat in Destiny 2. Unlock powerful abilities and collect unique gear across story missions, co-op, and PvP modes.

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Oct 1, 2019
79% 👍
of 663k
Gravitas - Players say: As an apprentice in a gravity gallery, solve first-person platforming puzzles by bending gravity and moving cubes through lethal exhibits. Players like: Enjoyable Puzzles · Curator’s Humor · Gravity Mechanics ·
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Gravitas is a short first-person puzzle platforming game that transports you to the Gallery of Refined Gravity. Manipulate gravity and the gallery itself to prove yourself a pupil worthy of the Curator’s masterwork.

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Aug 23, 2019
98% 👍
of 7.1k
The Orville - Interactive Fan Experience - Players say: Explore the USS Orville alone or with friends, pilot ships, customize quarters, try onboard diversions, and fight Kaylon craft. Players like: Detailed Ship Recreation · Free-Roam Exploration · Interactive Ship Systems ·
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Step aboard the USS Orville (ECV-197), the Planetary Union's finest mid-level exploratory class cruiser. With every room on every deck recreated with painstaking accuracy, you are free to explore the ship at your leisure and engage in all manner of shenanigans!

Hades' Star - Players say: Build a persistent space empire by colonizing planets, managing trade and fleets, and tackling timed cooperative and competitive missions. Players like: Long-Term Empire Building · Tactical Fleet Planning · Co-op Corporation Play ·
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A unique space strategy game where thousands of players participate in one shared galaxy.

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Feb 27, 2019
73% 👍
of 2.7k
Project Eagle: A 3D Interactive Mars Base - Players say: Explore a science-informed model of a possible Mars colony near Gale Crater, walking among its structures without managing a settlement. Players like: Mars Base Exploration · Science-Informed Design · Detailed Visuals ·
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An interactive art demo that showcases what a future base on Mars could look like. Project Eagle isn't a game - but an exploration of mankind's possible future.

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Nov 27, 2018
76% 👍
of 546
Odysseus Kosmos and his Robot Quest: Episode 1 - Players say: As engineer Odysseus, explore a malfunctioning research ship, solve point-and-click puzzles, and investigate strange events. Players like: Retro Pixel Art · Space Atmosphere · Quirky Character Humor ·
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What do you do if you are the only one left aboard a spaceship? Your team has embarked on a mysterious expedition a few years ago, the ship’s machinery has started acting up and it seems there are ghosts wandering about. Luckily, the black hole above you doesn’t pose any problems…yet.

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Jan 12, 2018
80% 👍
of 589
Galactic Junk League - Players say: Build a customized junk ship, choose a combat class, and battle other players in 7v7 sci-fi capture arenas. Players like: Distinct Ship Building · Memorable Space Battles · Ship Progression ·
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Build anything. Fight anyone. In space. Highly tactical competitive sci-fi combat/building multiplayer free-to-play game. Bit of MOBA, bit of sandbox. Try it out to see for yourself!

Learn to Fly 3 - Players say: Build and upgrade a flying machine for a penguin, earning cash from each launch as you aim for space across several modes. Players like: Satisfying Upgrade Loop · Flash-Game Nostalgia · Build Experimentation ·
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Build your spaceship from scratch, earn funds and invest them into building a bigger, better spaceship as you try and fly your way up to space!

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May 12, 2017
95% 👍
of 11k
Marvel's Guardians of the Galaxy: The Telltale Series - Players say: As Star-Lord, guide the Guardians through an episodic sci-fi adventure as they pursue a powerful relic and make story choices. Players like: Story and Characters · Funny Script · Memorable Soundtrack ·
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From Earth to the Milano to Knowhere and beyond, and set to the beat of awesome music, this five-part episodic series puts you in the rocket-powered boots of Star-Lord in an original Guardians adventure.

Star Crusade CCG - Players say: Build a sci-fi card deck for one of six factions, then fight tactical battles in casual, raid, and ranked modes. Players like: Strategic Depth · Faction Variety · Accessible Mechanics ·
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Star Crusade: War for the Expanse is a free-to-play, online, digital collectible card game (CCG) based in a richly styled sci-fi universe, where each player takes command of one of the six factions vying for supremacy in an unclaimed exotic sector of space.

Istrolid - Players say: Build modular spacecraft from individual parts, then lead your custom fleet in real-time fights for territory and resources. Players like: Custom Ship Design · Strategic Battles · Creative Experimentation ·
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In Istrolid you design your own unique spaceships from a large number of parts to fit your strategy and play style. With no set units or factions you are free to create a fleet where each ship has its own balanced strengths and weaknesses, from basic fighters and bombers to hulking battleships and speedy destroyers.

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May 6, 2016
87% 👍
of 2.7k
Star Realms - Players say: Build a space-combat deck by buying ships and bases from a shared market, then attack an opponent to drain their Authority. Players like: Easy to Learn · Strategic Deckbuilding · Quick Matches ·
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Star Realms is a hugely popular space combat deckbuilding game. Download and play today (note: base set is required to play online) to find out why Star Realms is the winner of SXSW 2014 Board Game of the Year, 7 Golden Geek Awards from BoardGameGeek, and 2 Dice Tower awards!

Overload Playable Teaser 3.0 - Players say: Pilot a ship through fully 3D, zero-gravity levels, fighting robots, searching for secrets, and escaping a reactor blast. Players like: Full-3D Ship Flight · Responsive Ship Controls · Satisfying Weapon Fire ·
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A playable demo of the game Overload, a new six-degree-of-freedom shooter from the creators of Descent. Version 3.0 is from April 2018.

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Mar 7, 2016
94% 👍
of 673
Space Pilgrim Episode I: Alpha Centauri - Players say: Pilot Gail Pilgrim’s routine run to Alpha Centauri becomes a story-led space adventure of dialogue, exploration, and item puzzles. Players like: Engaging Story · Memorable Characters · Retro Sci-Fi Mood ·
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Captain Gail Pilgrim has been flying starships since she was a kid, ferrying passengers between planets and space stations across the galaxy. She has no reason to expect that this latest trip to Alpha Centauri will be anything special, even if her passengers are a little more diverse than usual....

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Dec 21, 2015
88% 👍
of 1.4k
Endless Sky - Players say: Build a life among the stars by trading, mining, fighting, and exploring as you upgrade your ship and assemble a fleet. Players like: Expansive Exploration · Ship and Fleet Building · Flexible Career Choices ·
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Endless Sky is a 2D space trading and combat game inspired by the classic Escape Velocity series. Work your way up from a relatively wimpy shuttle, cargo ship, or fighter, to a highly upgraded and customized flagship or to a massive fleet of warships or freighters.

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Oct 30, 2015
92% 👍
of 7.1k
Relic Hunters Zero: Remix - Players say: Blast through space-duck and turtle forces as a Relic Hunter, dodging attacks, collecting weapons and relics, and facing Duke Ducan. Players like: Fast, Fun Shooting · Colorful Pixel Art · Free to Play ·
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Relic Hunters Zero: Remix is a remaster of the FREE 1 million player hit game about blasting evil space ducks and turtles with tiny cute guns. It’s fast, it’s tactical, and feels deliciously smooth to play. Unlock new weapons, characters and relics to defeat the Ducan Commander!