Co-op games like Diode Arena
Below are 8 cooperative Steam games similar to Diode Arena, 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 Diode Arena page.
Ranked picks
- 1
Jaeger
Online Co-op alternative to Diode Arena — playable with friends. Shares Action and Indie with Diode Arena.
Jaeger is a third-person MOBA game featuring distinct character classes, a unique weapon system, and a dynamic combat system.
- 2
Dark Engines
Online Co-op alternative to Diode Arena — playable with friends. Shares Action with Diode Arena.
Choose a juggernaut and blast through a dark fantasy campaign of brutal car combat, bosses, and unlocks. Then bring the carnage online in tight team-based multiplayer where explosives, magic, and heavy metal decide who survives.
- 3
Decisive Strike
Online Co-op alternative to Diode Arena — playable with friends. Shares Action and Indie with Diode Arena.
A sci-fi team-based Third Person Shooter where strategy is as important as your reflexes.
- 4
DotStrike
Online Co-op alternative to Diode Arena — playable with friends. Shares Action and Indie with Diode Arena.
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.
- 5
Scionide
Online Co-op alternative to Diode Arena — playable with friends. Shares Action with Diode Arena.
Scionide is a fast-paced sci-fi shooter set in 2268 AD, where the Amalgamate Republic fights for survival against the Scion Empire. Battle in single-player, PvP, and co-op PvE across dynamic maps.
- 6
Source Code
Online Co-op alternative to Diode Arena — playable with friends. Shares Action and Simulation with Diode Arena.
"Source Code" is a large-scale multiplayer online and LAN FPS/TPS game set in the backdrop of World War III. It features building and portal systems, a comprehensive Zombie DLC, and a wide array of firearms and equipment for competitive shooting.
- 7
Bushi
Online Co-op alternative to Diode Arena — playable with friends. Shares Action and Casual with Diode Arena.
Wield your bow and sword against fierce opponents as you master dynamic parkour in Bushi, a fast-paced samurai-themed arena brawler. Outsmart countless enemies and prove your skill in intense third-person precision combat.
- 8
Project Ignition
Online Co-op alternative to Diode Arena — playable with friends. Shares Action with Diode Arena.
Project Ignition is an objective-oriented, third-person, PvP vehicle battler where combat is centered around the way you drive. Pilot the Exoframes - a set of weaponized vehicles, with unique combat styles and abilities.