Free games like Outpost: Infinity Siege
Below are 8 free-to-play Steam games similar to Outpost: Infinity Siege, 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 Outpost: Infinity Siege page.
Ranked picks
- 1
Ultimate Custom Night
Free-to-play alternative to Outpost: Infinity Siege — no purchase or trial window. Shares Action with Outpost: Infinity Siege.
Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!
- 2
STRAFTAT
Free-to-play alternative to Outpost: Infinity Siege — no purchase or trial window. Shares Action with Outpost: Infinity Siege.
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.
- 3
Counter-Strike:Global Offensive
Free-to-play alternative to Outpost: Infinity Siege — no purchase or trial window. Shares Action with Outpost: Infinity Siege.
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.).
- 4
The Expendabros
Free-to-play alternative to Outpost: Infinity Siege — no purchase or trial window. Shares Action with Outpost: Infinity Siege.
The Expendabros have assembled and set their sights on the forces of ruthless arms dealer Conrad Stonebanks in the forests of Eastern Europe.
- 5
Iron Snout
Free-to-play alternative to Outpost: Infinity Siege — no purchase or trial window. Shares Action with Outpost: Infinity Siege.
Iron Snout is a fast, colorful and brutal fighting game in which you will be helping a piglet fight for its life against hordes of wolves.
- 6
The Lab
Free-to-play alternative to Outpost: Infinity Siege — 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!
- 7
DORONKO WANKO
Free-to-play alternative to Outpost: Infinity Siege — no purchase or trial window. Shares Action with Outpost: Infinity Siege.
『DORONKO WANKO』 is a DORONKO Action Game. In this game, You can become a cute, innocent Pomeranian, make your master's home messy and dirty. "Will the master be angry with me?" Don't worry. Because you are a sweet doggie.
- 8
Outpath: First Journey
Free-to-play alternative to Outpost: Infinity Siege — no purchase or trial window.
Outpath: First Journey is a prologue chapter of the main game, Outpath. An experimental clicker base building game. Craft, gather & manage resources, build your base and buy more islands to exploit and expand!