Free games like Rise of Mutant Swarms
Below are 8 free-to-play Steam games similar to Rise of Mutant Swarms, 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 Rise of Mutant Swarms page.
Ranked picks
- 1
Ultimate Custom Night
Free-to-play alternative to Rise of Mutant Swarms — no purchase or trial window.
Welcome to the ultimate FNAF mashup, featuring 50 selectable characters and custom difficulties!
- 2
The Looker
Free-to-play alternative to Rise of Mutant Swarms — no purchase or trial window.
You wake up, alone, on a strangely familiar island full of puzzles that will frustrate and annoy you.
- 3
Counter-Strike:Global Offensive
Free-to-play alternative to Rise of Mutant Swarms — no purchase or trial window.
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
Disfigure
Free-to-play alternative to Rise of Mutant Swarms — no purchase or trial window.
Disfigure is a grim-dark action rogue-like where you battle relentless hordes of monsters lurking in the shadows. Unlock powerful weapons, craft god-like builds with hundreds of upgrades, slay colossal bosses, and push your limits in intense 20–30 minute survival runs!
- 5
The Lab
Free-to-play alternative to Rise of Mutant Swarms — 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!
- 6
DORONKO WANKO
Free-to-play alternative to Rise of Mutant Swarms — no purchase or trial window.
『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.
- 7
Landfall Archives
Free-to-play alternative to Rise of Mutant Swarms — no purchase or trial window. Shares Strategy with Rise of Mutant Swarms.
Break into the Landfall Archives to steal and play previously unreleased games, demos, interactive slide shows, and even an unreleased version of Totally Accurate Battle Simulator from 2017!
- 8
Hello Neighbor Alpha 2
Free-to-play alternative to Rise of Mutant Swarms — no purchase or trial window. Shares Strategy with Rise of Mutant Swarms.
Welcome to Alpha 2 of Hello Neighbor. Play against an advanced, self-learning AI in what eventually became Act 1 of Hello Neighbor - the stealth horror home invasion sim.