Free games like Let Them Come: Onslaught
Below are 8 free-to-play Steam games similar to Let Them Come: Onslaught, 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 Let Them Come: Onslaught page.
Ranked picks
- 1
Gatekeeper: Infinity
Free-to-play alternative to Let Them Come: Onslaught — no purchase or trial window. Shares Action with Let Them Come: Onslaught.
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
Alien Swarm
Free-to-play alternative to Let Them Come: Onslaught — no purchase or trial window. Shares Action with Let Them Come: Onslaught.
Co-operative multiplayer game and complete code base available for free.
- 3
Halls of Torment: Prelude
Free-to-play alternative to Let Them Come: Onslaught — no purchase or trial window. Shares Action with Let Them Come: Onslaught.
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?
- 4
Disfigure
Free-to-play alternative to Let Them Come: Onslaught — no purchase or trial window. Shares Action with Let Them Come: Onslaught.
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
Evil Egg
Free-to-play alternative to Let Them Come: Onslaught — no purchase or trial window. Shares Action with Let Them Come: Onslaught.
Blast it all to hell.
- 6
Classic Marathon
Free-to-play alternative to Let Them Come: Onslaught — no purchase or trial window. Shares Action with Let Them Come: Onslaught.
From the team that brought you Aleph One, the classic sci-fi FPS Marathon from Bungie on Mac revived for modern hardware by the fan community.
- 7
Relic Hunters Zero: Remix
Free-to-play alternative to Let Them Come: Onslaught — no purchase or trial window. Shares Action with Let Them Come: Onslaught.
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!
- 8
Alien Swarm: Reactive Drop
Free-to-play alternative to Let Them Come: Onslaught — no purchase or trial window. Shares Action with Let Them Come: Onslaught.
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.