Co-op games like Galactic Wars EX
Below are 8 cooperative Steam games similar to Galactic Wars EX, 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 Galactic Wars EX page.
Ranked picks
- 1
TankFall Arena
Shared/Split Screen Co-op alternative to Galactic Wars EX — playable with friends. Shares Action with Galactic Wars EX.
Retro-inspired tank arena combat where every wall can become a weapon. Master ricochets, random battlefields, powerful pickups, and chaotic multiplayer battles against friends or AI opponents. Supports solo play, team battles, local multiplayer, and Remote Play Together.
- 2
Blazing Trail
Shared/Split Screen Co-op alternative to Galactic Wars EX — playable with friends. Shares Action and Indie with Galactic Wars EX.
Escape failed! All we have left is our will to survive, the endless hordes of enemies, and enough bullets to rip them all to shreds. Blazing trail. Vertical co-op shooter, offering accessible, action-packed gameplay.
- 3
Gladii
Shared/Split Screen Co-op alternative to Galactic Wars EX — playable with friends. Shares Action and Indie with Galactic Wars EX.
The enemies of humanity lay siege from all directions. You must fight your way through hordes of demons, zombies, ogres, and more as you unlock new characters and battlefields! Play solo or team up with three additional players in this 1-4 player couch co-op arena battle game.
- 4
Autonomous Anarchy
Shared/Split Screen Co-op alternative to Galactic Wars EX — playable with friends. Shares Action and Indie with Galactic Wars EX.
A retro twin-stick bullet-hell where you fight hordes of enemies, collect powerful weapons and upgrades, and go head to head with menacing mechanical bosses. Take on the hordes solo or with a friend in local co-op!
- 5
Topspace
Shared/Split Screen Co-op alternative to Galactic Wars EX — playable with friends. Shares Action and Indie with Galactic Wars EX.
A topdown bullet hell game where you control a spaceship and fight waves of asteroids and enemy spaceships.
- 6
Peraglees - The Ooloufian Resistance
Shared/Split Screen Co-op alternative to Galactic Wars EX — playable with friends. Shares Action and Indie with Galactic Wars EX.
Lock and load. Shoot first, ask questions if you feel like it. Every second counts as you dodge incoming fire, obliterate enemy fleets, and collect power-ups. It’s up to you to take the fight to the enemy, and save the Fennyverse from total annihilation.
- 7
Boing Bang Adventure
Shared/Split Screen Co-op alternative to Galactic Wars EX — playable with friends. Shares Action and Indie with Galactic Wars EX.
Boing Bang Adventure is a 2D arcade game in the style of the classic arcade game "Pang" Face almost 50 levels, in 8 different world in single player or in local co-op!
- 8
Proto Trigger
Online Co-op alternative to Galactic Wars EX — playable with friends. Shares Action with Galactic Wars EX.
An arcade shoot'em up with unique power-infusion gameplay. Face down an unknown army alone or with a friend in online or local co-op. Navigate the cosmos to save the remants of humanity, or join them in extinction!