Early Access
Space Sim games in Steam Early Access, scored by how recently and how regularly they ship updates. Filtered to no recent updates.
Showing 1–24. AI-disclosed games are hidden.
Marauders is a tactical first-person multiplayer looter shooter set in a sci-fi universe. As a space pirate, work solo, or in a squad with up to 3 other players to navigate a hostile battleground, hunt for loot, craft new weapons and gear, and salvage what you’ll need to survive.
Small Impact Games · Last update 6 months ago · Mixed · 67% of 21,462 · 4 playing
Update frequency
Rarely updated
6/100
In Spaceflight Simulator, you will get to build your rockets, plan launches and flights, attempt landings, deploy payloads and explore new worlds.
Team Curiosity ✦ · Last update 6 months ago · Overwhelmingly Positive · 97% of 9,905 · 88 playing
Update frequency
Rarely updated
12/100
Launch rockets into orbit around planets, find a good trajectory, and take risks to increase your score! Play solo, online, or even on Twitch!
Shakawah · Last update 6 months ago · Very Positive · 99% of 94 · 0 playing
Update frequency
Sporadic
23/100
The year is 2040. You, an ex-sergeant, have signed a contract with a large mining corporation in the Belt. Mine ore, build out your outpost, travel to nearby asteroids and collaborate with other belters.
GridSky Studios · Last update 6 months ago · Mostly Positive · 72% of 18 · 0 playing
Update frequency
Rarely updated
6/100
Who needs gas when you've got gravity? Casual space flight enhanced with "borrowed" alien tech! Controller and Keyboard flight support
Nixiesoft LLC · Last update 6 months ago · 0 playing
Update frequency
Rarely updated
6/100
Polynomial 2 is an amazing visual candy which tends to be a space shooter and a music visualizer. Immersive on screen, mind-blowing in VR.
Dmytry Lavrov · Last update 6 months ago · Very Positive · 81% of 156 · 0 playing
Update frequency
Rarely updated
3/100
The Fermi Paradox is a choice-driven sci-fi narrative strategy game in which your decisions in one corner of the galaxy can upend entire civilizations in another. Guide species through millennia and help them explore the vastness of space, make contact and, perhaps, create harmony.
Anomaly Games · Last update 7 months ago · Mostly Positive · 77% of 1,003 · 4 playing
Update frequency
Rarely updated
12/100
VR spaceflight simulator built for maximum sense of presence. Operate a fully interactable and customizable cockpit and take full control of your ship in a sci-fi open environment.
Lluís Garcia Lamora · Last update 7 months ago · Positive · 100% of 5 · 0 playing
Update frequency
Rarely updated
16/100
Catch These Hands turns your webcam into a motion-tracking engine. No VR needed. Punch liquid enemies with 1:1 physics, pilot a ship using your head, Fight people online (PVP). It’s an experimental sandbox for fitness fans and tinkerers looking to ditch the controllers.
MissilexCrisis · Last update 7 months ago · Positive · 100% of 1 · 0 playing
Update frequency
Rarely updated
12/100
Operate the Starship space launch system and learn how to catch a rocket to understand what it takes to colonize Mars in this ever-evolving simulation of SpaceX Starbase Texas.
AshtorakSimGames · Last update 7 months ago · Very Positive · 95% of 62 · 0 playing
Update frequency
Rarely updated
6/100
Commanding a starship, you’ll trade goods across the galaxy, evade cosmic threats, and grow your trading empire. Do you have what it takes to outmaneuver rivals and become a trading legend? Take command of your destiny in Epic Space Trader, your journey to the stars begins now!
Digital Tectonics, LLC · Last update 9 months ago · Positive · 85% of 13 · 0 playing
Update frequency
Rarely updated
15/100
Fly an Apollo-style lander around various planets, landing to earn points and then redocking with the command module to advance to the next level.
TChapman500 · Last update 10 months ago · Positive · 100% of 4 · 0 playing
Update frequency
Rarely updated
6/100
You explore an alien machine, learn to operate it, create virtual organisms, and grow an artificial ecosystem inside it. You design species down to individual atoms and watch them fight for survival. You then send successful species to other players to leech energy from them and power your machine.
soulless technologies · Last update 10 months ago · Mostly Positive · 76% of 25 · 0 playing
Update frequency
Rarely updated
3/100
Join the European Space Agency's SHIELD mission and discover why aliens aren't the biggest threat to us! In this science-based Planetary Protection Simulator, you fight real cosmic hazards. Build, Monitor, Protect! Become Earth's Last Defense.
Hochschule Darmstadt Games Lab · Last update 10 months ago · Mostly Positive · 77% of 35 · 0 playing
Update frequency
Rarely updated
6/100
Conquer the Settled Galaxy in Periapsis: Eclipse where gravity, heat and the physics of space are the keys to conquest. Master orbital mechanics, real-world inspired weapons and nuclear rockets to outmaneuver dozens of hostile ships and claim victory for the Exiled Empire.
Skytrellis Games · Last update 10 months ago · Mostly Positive · 72% of 53 · 0 playing
Update frequency
Rarely updated
9/100
Keep hope alive on your adventure to the mythical Forever Star! Gather survivors, repair and build out your starship, brave black holes, and fend off attacks, all while managing the daily soap opera of your colorful crew.
League of Geeks · Last update 12 months ago · Mixed · 59% of 995 · 0 playing
Update frequency
Rarely updated
0/100
beyond.frontiers is an open-world space adventure with 30+ ships, 125+ sectors, and fully voiced stories. Trade, explore, or fight — your choices shape the galaxy as three empires clash and ancient secrets await discovery.
Duality Beyond Studios · Last update 12 months ago · Mixed · 57% of 21 · 0 playing
Update frequency
Rarely updated
0/100
"Sirius-4" is a plot-oriented space simulator that gives the player complete freedom of action as a hired pilot of the "Sirius" unit. The action takes place on the outskirts of human space during a turbulent time for the galaxy after a global war.
Triumvirate Games · Last update 13 months ago · Mixed · 43% of 23 · 0 playing
Update frequency
Rarely updated
0/100
Take the reins of the newly founded Office of Interstellar Production, annex newly discovered star systems, mine resources and refine quality components to build mighty warships to deliver to the unceasing needs of the Navy. A chill sandbox resource management game.
Moonchisel Studio · Last update 13 months ago · Mixed · 50% of 2 · 0 playing
Update frequency
Rarely updated
0/100
Extremely high skill-ceiling 6dof flight racing in a variety of environments with leaderboards, multiplayer and VR support
Stargoat Games · Last update 14 months ago · Mostly Positive · 78% of 370 · 0 playing
Update frequency
Rarely updated
0/100
I always wanted to play an action game where I could take direct control of a capital ship in 3D space. One day, I decided to make that game. As a solo developer I spent two years crafting Galactic Warship - letting you pilot massive capital warships in full 3D with complete 6-axis freedom.
Box of Tricks Entertainment · Last update 16 months ago · Mixed · 67% of 3 · 0 playing
Update frequency
Rarely updated
0/100
Race through cosmic tracks at breakneck speed! Master tight turns, boost past rivals, and dominate the stars with precision driving. Victory awaits those bold enough to rule the galaxy!
Fun2Studio · Last update 17 months ago · Mixed · 50% of 2 · 0 playing
Update frequency
Rarely updated
0/100
From a small 2-man team comes a unique space station management sim. Take on the role of an A.I commanding a lost space ark. Try not to let your crew run amok and wreck the place.
Ominux Games · Last update 19 months ago · Mixed · 61% of 1,054 · 0 playing
Update frequency
Rarely updated
0/100
Play as a lone space traveler, floating in the galaxy while exploring the boundaries of human civilization.
上海文青娱乐消费总咖啡厅 · Last update 20 months ago · Mostly Positive · 79% of 14 · 0 playing
Update frequency
Rarely updated
0/100