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

Waves
Free-to-play alternative to Insect Swarm — no purchase or trial window. Shares Action and Indie with Insect Swarm.
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!
- 2

Alien Swarm: Reactive Drop
Free-to-play alternative to Insect Swarm — no purchase or trial window. Shares Action with Insect Swarm.
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.
- 3

I MAED A GAM3 W1TH Z0MB1ES 1N IT!!!1
Free-to-play alternative to Insect Swarm — no purchase or trial window. Shares Action and Indie with Insect Swarm.
A top down twin stick zombie slaying shooter that you are sure to play again and again!
- 4

Evil Egg
Free-to-play alternative to Insect Swarm — no purchase or trial window. Shares Action with Insect Swarm.
Blast it all to hell.
- 5

Echoes+
Free-to-play alternative to Insect Swarm — no purchase or trial window. Shares Action and Indie with Insect Swarm.
Echoes+ is an intense retro action space shooter that will test your reaction and concentration levels to the max!
- 6

Path of Exile
Free-to-play alternative to Insect Swarm — no purchase or trial window. Shares Action and Indie with Insect Swarm.
You are an Exile, struggling to survive on the dark continent of Wraeclast, as you fight to earn power that will allow you to exact your revenge against those who wronged you. Path of Exile is an online Action RPG set in a dark fantasy world. The game is completely free and will never be pay-to-win.
- 7

Disfigure
Free-to-play alternative to Insect Swarm — no purchase or trial window. Shares Action and Indie with Insect Swarm.
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!
- 8

Halls of Torment: Prelude
Free-to-play alternative to Insect Swarm — no purchase or trial window. Shares Action and Indie with Insect Swarm.
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?