Co-op games like Infernal Wave
Below are 8 cooperative Steam games similar to Infernal Wave, ranked by player overlap and content similarity. Every pick supports cooperative play — online co-op, LAN co-op, or shared/split-screen — so you can play with friends right out of the box. imho.run pulls from the same Steam category data Valve uses internally, so "Co-op" here matches what the store labels.
Want the full alternatives list (paid + free + Steam Deck + cheaper picks)? See the parent games like Infernal Wave page.
Ranked picks
- 1
DotStrike
Online Co-op alternative to Infernal Wave — playable with friends. Shares Action and Early Access with Infernal Wave.
DotStrike is a 3D online shooter in which alien invaders in the form of colored spheres fight each other in a seaport. But the aliens are not fighting alone.
- 2
Broken War
Online Co-op alternative to Infernal Wave — playable with friends. Shares Action and Early Access with Infernal Wave.
Broken War is an intense first-person shooter that combines different multiplayer modes.
- 3
Antiutopia
Online Co-op alternative to Infernal Wave — playable with friends. Shares Action with Infernal Wave.
Antiutopia is a fast-paced, skill-based multiplayer FPS set in a fractured sci-fi world. Built from the ground up in a custom engine by a solo developer, it delivers classic arena gun-play, tight matches, and pure competitive action. No progression grind, no gimmicks, just skill.
- 4
Mutant Crisis
Online Co-op alternative to Infernal Wave — playable with friends. Shares Action and Adventure with Infernal Wave.
If you like to fight zombies purely, and hope to have talents and attribute growth, be able to unlock epic weapons for free that previously required a recharge of $3888 in krypton gold games, and be able to cooperate with friends online to challenge BOSS, then don't miss this game.
- 5
Polygone
Online Co-op alternative to Infernal Wave — playable with friends. Shares Action and Adventure with Infernal Wave.
Polygone is a low-poly, yet highly visual take on the classic "Zombie Modes" in modern first person shooters. Play with up to four friends to fight off endless hordes of over 50 different zombies and bosses on a massive map that you'll need to unlock areas to explore.
- 6
Unreal Tournament 3
Online Co-op alternative to Infernal Wave — playable with friends. Shares Action with Infernal Wave.
Now includes the free Titan Pack expansion! The Titan Pack gives players a substantial amount of enhanced features and new content, including many original environments, new gametypes, the namesake Titan mutator, powerful deployables and weapons, new characters, and the Stealthbender.
- 7
Finnish Cabin Mayhem - Mökkimähinä
Online Co-op alternative to Infernal Wave — playable with friends. Shares Action with Infernal Wave.
Alcohol. Action. Violence. Get ready to take your friends "behind the sauna" using whatever there is at hand.
- 8
After the Fall®
Online Co-op alternative to Infernal Wave — playable with friends. Shares Action and Adventure with Infernal Wave.
From the team that brought you Arizona Sunshine® comes an epic VR action FPS with intense co-op gameplay at its core. Team up with friends and take on a hostile VR world filled with ferocious undead--mutated and twisted by the relentless cold.