Free games like SPACECOM
Below are 9 free-to-play Steam games similar to SPACECOM, 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 SPACECOM page.
Ranked picks
- 1

Istrolid
Free-to-play alternative to SPACECOM — no purchase or trial window. Shares Strategy and Indie with SPACECOM.
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.
- 2

War of Dots
Free-to-play alternative to SPACECOM — no purchase or trial window. Shares Indie and Strategy with SPACECOM.
Easy to learn, hard to master. A simple & free RTS game.
- 3

Star Realms
Free-to-play alternative to SPACECOM — no purchase or trial window. Shares Strategy with SPACECOM.
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!
- 4

Zero-K
Free-to-play alternative to SPACECOM — no purchase or trial window. Shares Strategy and Indie with SPACECOM.
With 100+ truly unique units, Zero-K is an RTS of freedom and creativity, tempered by a decade of refinement. Sculpt land into a castle and throw invaders off it with a Jugglenaut. Explore a massive campaign, solo or co-op. Hop online for epic 32 player battles or fast paced 1v1, on 100s of maps.
- 5

Dota 2
Free-to-play alternative to SPACECOM — no purchase or trial window. Shares Strategy with SPACECOM.
Every day, millions of players worldwide enter battle as one of over a hundred Dota heroes. And no matter if it's their 10th hour of play or 1,000th, there's always something new to discover. With regular updates that ensure a constant evolution of gameplay, features, and heroes, Dota 2 has taken on a life of its own.
- 6

Tom Clancy's Rainbow Six Siege
Free-to-play alternative to SPACECOM — no purchase or trial window.
Rainbow Six® Siege is the reference in tactical team shooters, where elite strategy and execution triumph. Enjoy free access to Quick Match, Unranked, and Dual Front game modes with a selection of operators.
- 7

Splitgate
Free-to-play alternative to SPACECOM — no purchase or trial window. Shares Indie with SPACECOM.
Splitgate is a free-to-play, fast-paced multiplayer shooter that features player-controlled portals. This sci-fi shooter takes the FPS genre to a new dimension with its portal mechanics, delivering high-flying, multi-dimensional combat.
- 8

Counter-Strike 2
Free-to-play alternative to SPACECOM — no purchase or trial window.
For over two decades, Counter-Strike has offered an elite competitive experience, one shaped by millions of players from across the globe. And now the next chapter in the CS story is about to begin. This is Counter-Strike 2.
- 9

Microsoft Allegiance
Free-to-play alternative to SPACECOM — no purchase or trial window. Shares Strategy with SPACECOM.
Allegiance is a team-based multiplayer space combat sim that seamlessly combines first-person space combat with a top-down-view perspective, real time strategy, and real time tactics. Team commanders build bases, research technology, and coordinate players to execute a wide range of strategies.