Free games like Killsquad
Below are 8 free-to-play Steam games similar to Killsquad, 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 Killsquad page.
Ranked picks
- 1

Gatekeeper: Infinity
Free-to-play alternative to Killsquad — no purchase or trial window. Shares Action and Indie with Killsquad.
Prologue version of the game Gatekeeper. Gatekeeper: Infinity is a fast-paced rogue-lite shooter where you'll search for the stolen Heart of the Universe and battle machine enemies! Play solo or join forces with friends in co-op mode.
- 2

Spiral Knights
Free-to-play alternative to Killsquad — no purchase or trial window. Shares Action and Indie with Killsquad.
Join the ranks of the Spiral Knights. Stranded on an alien world, you must explore the ever-changing Clockworks beneath its surface.
- 3

Alien Swarm: Reactive Drop
Free-to-play alternative to Killsquad — no purchase or trial window. Shares Action with Killsquad.
Co-operative top-down shooter game available for free. An epic bug hunt featuring a unique blend of co-op play and squad-level tactics.
- 4

Realm of the Mad God Exalt
Free-to-play alternative to Killsquad — no purchase or trial window. Shares Action and Indie with Killsquad.
Embark on an exhilarating journey into the pixelated Realm of the Mad God! Join, an action-packed, free-to-play MMO bullet hell game. Discover a world with danger, challenges, and hidden treasures as you battle through waves of enemies. Team up with players and conquer dungeons to become a legend!
- 5

Halls of Torment: Prelude
Free-to-play alternative to Killsquad — no purchase or trial window. Shares Action and Indie with Killsquad.
Slay hordes of terrifying monsters in this horde survival roguelite. Descend into the Halls of Torment where the Lords of the underworld await you. Treasures, magical trinkets, and a growing cast of heroes will grant you the power to vanquish these horrors from beyond. How long can you survive?
- 6

Relic Hunters Zero: Remix
Free-to-play alternative to Killsquad — no purchase or trial window. Shares Action and Indie with Killsquad.
Relic Hunters Zero: Remix is a remaster of the FREE 1 million player hit game about blasting evil space ducks and turtles with tiny cute guns. It’s fast, it’s tactical, and feels deliciously smooth to play. Unlock new weapons, characters and relics to defeat the Ducan Commander!
- 7

AdventureQuest 3D
Free-to-play alternative to Killsquad — no purchase or trial window. Shares Action and Indie with Killsquad.
The Void King is raising an army in secret. Death has chosen you as his champion to bring him down. Adventure & quest alongside your friends in this bizarre cross-platform MMORPG from the creators of the original, and comically-redundantly named... AdventureQuest! Weekly releases!
- 8

BLEACH Brave Souls
Free-to-play alternative to Killsquad — no purchase or trial window. Shares Action and RPG with Killsquad.
The world of mega-hit manga and anime BLEACH comes to Steam in this exciting 3D action game! Build a team using your favorite characters from the BLEACH universe!