Free games like Deep Space Battle Simulator
Below are 9 free-to-play Steam games similar to Deep Space Battle Simulator, 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 Deep Space Battle Simulator page.
Ranked picks
- 1
Ultimate Custom Night
Free-to-play alternative to Deep Space Battle Simulator — no purchase or trial window. Shares Action and Indie with Deep Space Battle Simulator.
Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!
- 2
Bongo Cat
Free-to-play alternative to Deep Space Battle Simulator — no purchase or trial window. Shares Indie with Deep Space Battle Simulator.
Bongo cat needs your help. Bongo cat needz more hatz!!! Every time you press a key, Bongo cat will punch your taskbar. Type, click, play, work to collect more points. Which hats will you find?
- 3
Indigo Park: Chapter 1
Free-to-play alternative to Deep Space Battle Simulator — no purchase or trial window. Shares Action and Indie with Deep Space Battle Simulator.
Explore the abandoned childhood wonder of Indigo Park! Guided by Rambley the Raccoon, help restore power to the destroyed amusement park while you run from the reason it shut down.
- 4
STRAFTAT
Free-to-play alternative to Deep Space Battle Simulator — no purchase or trial window. Shares Action with Deep Space Battle Simulator.
STRAFTAT is a 1v1/2v2 ONLINE first person SHOOTER with quick rounds in over 350 MAPS ; Including all WEAPONS, proximity chat and 4 players FFA.
- 5
Counter-Strike:Global Offensive
Free-to-play alternative to Deep Space Battle Simulator — no purchase or trial window. Shares Action with Deep Space Battle Simulator.
Counter-Strike:Global Offensive (CS:GO) expands upon the team-based action gameplay that it pioneered when it was launched over 2 decades ago. CS:GO features new maps, characters, weapons, and game modes, and delivers updated versions of the classic CS content (de_dust2, etc.).
- 6
Grimm's Hollow
Free-to-play alternative to Deep Space Battle Simulator — no purchase or trial window. Shares Indie with Deep Space Battle Simulator.
A spooky, freeware RPG where you search the afterlife for your brother. Reap ghosts with your scythe, explore haunted caves, and eat ghostly treats on your journey through death.
- 7
The Expendabros
Free-to-play alternative to Deep Space Battle Simulator — no purchase or trial window. Shares Action and Indie with Deep Space Battle Simulator.
The Expendabros have assembled and set their sights on the forces of ruthless arms dealer Conrad Stonebanks in the forests of Eastern Europe.
- 8
The Lab
Free-to-play alternative to Deep Space Battle Simulator — no purchase or trial window.
Welcome to The Lab, a compilation of Valve’s room-scale VR experiments set in a pocket universe within Aperture Science. Fix a robot, defend a castle, adopt a mechanical dog, and more. Still not sold? It’s free!
- 9
Microsoft Allegiance
Free-to-play alternative to Deep Space Battle Simulator — no purchase or trial window. Shares Action and Strategy with Deep Space Battle Simulator.
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.