Free games like CSC | Space MMO
Below are 11 free-to-play Steam games similar to CSC | Space MMO, ranked by player overlap and content similarity. No purchase or Steam login required to view the list. Every pick is a full free-to-play title — not a demo, trial, or time-limited giveaway. imho.run's catalogue refreshes daily, so newly free or newly popular titles surface here without manual editing.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like CSC | Space MMO page.
Ranked picks
- 1
STAR WARS™: The Old Republic™
Free-to-play alternative to CSC | Space MMO — no purchase or trial window. Shares Massively Multiplayer and Free To Play with CSC | Space MMO.
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.
- 2
RuneScape ®
Free-to-play alternative to CSC | Space MMO — no purchase or trial window. Shares Massively Multiplayer and Free To Play with CSC | Space MMO.
RuneScape is a high fantasy open world MMORPG. Explore an ever changing and evolving living world where new challenges, skills, and quests await. Featuring unprecedented player freedom, you choose how to play, adventure, and grow.
- 3
Global Agenda: Free Agent
Free-to-play alternative to CSC | Space MMO — no purchase or trial window. Shares Massively Multiplayer and Free To Play with CSC | Space MMO.
2155. From the ashes of the devastating Third Great War rose the Commonwealth, an oppressive world government determined to control the entire planet. The few remaining independent factions retaliate the only way they can, with elite teams of special operatives trained in advanced warfare tactics and equipped with high-tech weaponry.
- 4
Endless Sky
Free-to-play alternative to CSC | Space MMO — no purchase or trial window.
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.
- 5
Guild Wars 2®
Free-to-play alternative to CSC | Space MMO — no purchase or trial window. Shares Massively Multiplayer and Free To Play with CSC | Space MMO.
Guild Wars 2 is an award-winning online roleplaying game with fast-paced action combat, deep character customization, and no subscription fee required. Choose from an arsenal of professions and weapons, explore a vast open world, compete in PVP modes and more. Join over 16 million players now!
- 6
Warframe
Free-to-play alternative to CSC | Space MMO — no purchase or trial window. Shares Free To Play with CSC | Space MMO.
Awaken as an unstoppable warrior and battle alongside your friends in this story-driven free-to-play online action game
- 7
Realm of the Mad God Exalt
Free-to-play alternative to CSC | Space MMO — no purchase or trial window. Shares Massively Multiplayer with CSC | Space MMO.
Embark on an exhilarating journey into the pixelated Realm of the Mad God! Join, an action-packed, free-to-play MMO bullet hell game. Discover a world with danger, challenges, and hidden treasures as you battle through waves of enemies. Team up with players and conquer dungeons to become a legend!
- 8
Spiral Knights
Free-to-play alternative to CSC | Space MMO — no purchase or trial window. Shares Massively Multiplayer with CSC | Space MMO.
Join the ranks of the Spiral Knights. Stranded on an alien world, you must explore the ever-changing Clockworks beneath its surface.
- 9
EVE Online
Free-to-play alternative to CSC | Space MMO — no purchase or trial window. Shares Massively Multiplayer with CSC | Space MMO.
Over 20 years of legendary space battles! Explore a massive living universe of danger and opportunity in a challenging and highly rewarding space adventure. Fight, trade, build, and connect with a universe driven and shaped directly by players.
- 10
Perpetuum
Free-to-play alternative to CSC | Space MMO — no purchase or trial window. Shares Massively Multiplayer with CSC | Space MMO.
Perpetuum is a persistent, sandbox, single server, massively multiplayer sci-fi rpg (MMORPG). Control huge robots and mechs to gain access to an alien planet's resources and knowledge, amass huge wealth, or even claim part of the world for yourself using terraforming and complex infrastructure.
- 11
Shroud of the Avatar: Forsaken Virtues
Free-to-play alternative to CSC | Space MMO — no purchase or trial window. Shares Free To Play and Massively Multiplayer with CSC | Space MMO.
SHROUD OF THE AVATAR: FORSAKEN VIRTUES is a multiplayer fantasy RPG that sets the player on a path filled with peril and tough choices as they explore a persistent realm that can be shared with other Avatars. It is the spiritual successor to Richard Garriott’s Ultima games.