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

STRAFTAT
Free-to-play alternative to Swarmsign — no purchase or trial window. Shares Action with Swarmsign.
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.
- 2

Counter-Strike:Global Offensive
Free-to-play alternative to Swarmsign — no purchase or trial window. Shares Action with Swarmsign.
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.).
- 3

Disfigure
Free-to-play alternative to Swarmsign — no purchase or trial window. Shares Action and Indie with Swarmsign.
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!
- 4

The Lab
Free-to-play alternative to Swarmsign — 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!
- 5

I MAED A GAM3 W1TH Z0MB1ES 1N IT!!!1
Free-to-play alternative to Swarmsign — no purchase or trial window. Shares Action and Indie with Swarmsign.
A top down twin stick zombie slaying shooter that you are sure to play again and again!
- 6

The Riftbreaker: Prologue
Free-to-play alternative to Swarmsign — no purchase or trial window. Shares Action and Indie with Swarmsign.
The Riftbreaker: Prologue allows you to experience the events taking place before the story campaign of the main game. Explore an entirely new world. Gather resources. Build up a base. Defend yourself from thousands of alien creatures.
- 7

Gun Devil
Free-to-play alternative to Swarmsign — no purchase or trial window. Shares Action and Indie with Swarmsign.
GUN DEVIL is an explosive platformer about rescuing your kidnapped hell wife from Satan's child, the Caramelized Dumbass and his Pimp Legion.
- 8

Waves
Free-to-play alternative to Swarmsign — no purchase or trial window. Shares Action and Indie with Swarmsign.
Waves is an Arcade Twin-Stick Shooter that's all about High Scores. Build your combo and drop bombs in pursuit of Leaderboard dominance over seven game-modes!
- 9

Mecha BREAK
Free-to-play alternative to Swarmsign — no purchase or trial window. Shares Action with Swarmsign.
Squad up in Mecha BREAK, a multiplayer third-person shooter offering three intense game modes filled with ground and aerial combat. Pilot your Striker into the breach and neutralize enemies. Are you ready for the ultimate showdown?