Best Free to Play Space Games on Steam
Check out this fantastic list of free-to-play space games you can enjoy on Steam right now, updated on April 01st 2026. Looking for even more free titles? Explore the complete list of the best free to play space games on Steam.
More Games
1. Unnamed Space Idle
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. Unnamed Space Idle is a idler, casual and simulation game. Released on July 27th 2023 has received 3,976 reviews of which 3,691 were positive and 285 were negative resulting in a rating of 8.9 out of 10. The game has hit the top spot as the #1 most played space game, thanks to its 3,263 peak concurrent players over the last day.
8.9
3,691
285
3,263
players
2. Galaxy Idle Clicker
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! Galaxy Idle Clicker is a indie, idler and clicker game. Released on August 06th 2025 has received 1,117 reviews of which 840 were positive and 277 were negative resulting in a rating of 7.2 out of 10. While seeing 940 players online at once in the last 24 hours, this game is currently ranked #2 among space games based on player count.
7.2
840
277
940
players
3. Star Trek Timelines
Explore the Final Frontier in the ultimate sci-fi strategy RPG, Star Trek Timelines! Join Starfleet and overcome challenges as you boldly go where no game has gone before – across the entire history of Star Trek. Star Trek Timelines is a strategy, space and adventure game. Released on July 12th 2017 has received 1,430 reviews of which 938 were positive and 492 were negative resulting in a rating of 6.4 out of 10. While seeing 211 players online at once in the last 24 hours, this game is currently ranked #3 among space games based on player count.
6.4
938
492
211
players
4. Pixel Starships
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. Pixel Starships is a sci-fi, space and strategy game. Released on May 23rd 2023 has received 2,732 reviews of which 2,008 were positive and 724 were negative resulting in a rating of 7.1 out of 10. With 165 concurrent players in the last 24 hours, the game currently holds the #4 spot among the most played space games.
7.1
2,008
724
165
players
5. Subspace Continuum
THE legendary free online multiplayer space shooter! Addictive, fast-paced, easy to learn, and impossible to master. Subspace Continuum is a massively multiplayer, action and casual game. Released on July 03rd 2015 has received 599 reviews of which 530 were positive and 69 were negative resulting in a rating of 8.3 out of 10. The game currently holds the #5 spot among the most played space games.
8.3
530
69
13
players
6. Galcon 2: Galactic Conquest
Galcon 2 is a demolition derby in space! Send swarms of ships from planet to planet to conquer the galaxy in this fast paced multiplayer strategy game! Galcon 2: Galactic Conquest is a strategy, indie and multiplayer game. Released on December 05th 2014 has received 859 reviews of which 719 were positive and 140 were negative resulting in a rating of 7.9 out of 10. The game currently holds the #6 spot among the most played space games.
7.9
719
140
4
players
7. Quintet
A cooperative, cross-platform, multiplayer scifi game where players control the same ship through 5 roles — Captain, Helm, Tactical, Engineering & Science. Battle with other player crews over the Internet. Quintet is a indie, action and space game. Released on May 11th 2015 has received 360 reviews of which 277 were positive and 83 were negative resulting in a rating of 7.2 out of 10. The game currently holds the #7 spot among the most played space games.
7.2
277
83
1
players
8. Endless Sky
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. Endless Sky is a space, open world and singleplayer game. Released on October 30th 2015 has received 6,651 reviews of which 6,141 were positive and 510 were negative resulting in a rating of 8.9 out of 10. The game currently holds the #8 spot among the most played space games.
8.9
6,141
510
9. Moonbase Alpha
NASA has once again landed on the lunar surface with the goal of colonization, research, and further exploration. Shortly after the return to the Moon, NASA has established a small outpost on the south pole of the moon called Moonbase Alpha. Moonbase Alpha is a space, simulation and multiplayer game. Released on July 06th 2010 has received 12,838 reviews of which 11,622 were positive and 1,216 were negative resulting in a rating of 8.8 out of 10. The game currently holds the #9 spot among the most played space games.
8.8
11,622
1,216
10. Overload Playable Teaser 3.0
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. Overload Playable Teaser 3.0 is a action, 6dof and multiplayer game. Released on March 07th 2016 has received 670 reviews of which 631 were positive and 39 were negative resulting in a rating of 8.8 out of 10. The game currently holds the #10 spot among the most played space games.
8.8
631
39
More Space & Related Games
Love Space games? Dive into even more! Our extensive collection is ready to be explored with these easy links. Filter by price, uncover new titles and grab incredible deals to pinpoint your ideal game.