Co-op games like Band of Defenders
Below are 8 cooperative Steam games similar to Band of Defenders, 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 Band of Defenders page.
Ranked picks
- 1
Out of Ammo
Online Co-op alternative to Band of Defenders — playable with friends. Shares Action with Band of Defenders.
Out of Ammo is an intense VR Tower Defense / FPS hybrid strategy game that will have you constructing defenses, calling in artillery, issuing orders, and taking direct control of your soldiers in order to survive a relentless enemy onslaught.
- 2
Stronghold: Warlords
Co-op alternative to Band of Defenders — playable with friends.
Besiege Great Khans, Imperial warlords and Shōgun commanders in Stronghold: Warlords, the latest 'castle sim' from Firefly Studios. Command AI warlords across the battlefield as you build a castle economy and new gunpowder-fuelled siege engines!
- 3
The Last Camp
Online Co-op alternative to Band of Defenders — playable with friends.
This is a top-down survival-building game blending farming, tower defense, and micromanagement, requiring you to fend off zombie hordes, grow crops, and strategically deploy traps to defend your homestead.
- 4
Treefender
Online Co-op alternative to Band of Defenders — playable with friends. Shares Action with Band of Defenders.
Relive your childhood in Treefender, a VR-exclusive 4 player online co-op base-building game where you build your own treefort and defend it against a spacesquid invasion!
- 5
Attack on Toys
Shared/Split Screen Co-op alternative to Band of Defenders — playable with friends. Shares Action with Band of Defenders.
Relive Your Childhood Toys comes to life! Build your Army Toys, make battle scenario, watch the Toys battling each other, and customize your play with Attack on Toys Toy Box. Command your Army Toys to fight againts another toys strategically and keep them alive during battle!
- 6
Sandbox Apocalypse
Online Co-op alternative to Band of Defenders — playable with friends. Shares Action with Band of Defenders.
Sandbox Apocalypse is a 3rd person view, open world post-apocalyptic survial game where you are responsible for your own fate. Survive in a world inhabited by zombies, gather loot, build your base and explore the world.
- 7
Battlefall: State of Conflict
Online Co-op alternative to Band of Defenders — playable with friends. Shares Action with Band of Defenders.
Engage in a post-apocalyptic RTS showdown between three factions in Battlefall: State of Conflict.
- 8
Outpost: Infinity Siege
Online Co-op alternative to Band of Defenders — playable with friends. Shares Action with Band of Defenders.
Command Mobile Outpost and take XEN Firearm to venture deep into the Signet surveillance off-limit area. Collect unique Weapon Units. Amp up the firepower of the Outpost that fights with you. This is an FTD game - FPS, Tower Defense, Base Building and much more all at the same time.