Co-op tower defense games

22 games · store facts checked 2026-11-03

These are the games in our library whose Steam store page lists a co-op mode. We mark which ones are online co-op and which also support local, same-screen play.

Co-op here means what Steam lists, not how good the co-op is. For our picks on which ones are actually worth playing together, read the co-op rankings linked below.

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  1. Bloons TD 6

    Co-op: online

    The definitive Bloons tower defense: deep tower upgrades, heroes, and endless replayability.

    • Windows · Mac
    • Deck Playable
    • Online co-op
    • Android (paid, IAP)
    • iOS (paid)

    SteamGoogle PlayApp Store

  2. Defense Grid 2

    Co-op: online, local

    Sequel to Defense Grid with new maps, towers, and campaign.

    • Windows
    • Deck Verified
    • Local co-op
    • Online co-op
    • PvP

    Steam

  3. Mindustry

    Co-op: online

    Open-source tower defense and factory game with conveyor logistics and turrets.

    • Windows · Mac · Linux
    • Deck Playable
    • Online co-op
    • PvP
    • Android (free)
    • iOS (paid)

    SteamGoogle PlayApp Store

  4. Creeper World 4

    Co-op: online, LAN

    Puzzle and network defense against the creeper fluid across varied missions.

    • Windows
    • Deck Playable
    • Online co-op

    Steam

  5. Riftbreaker

    Co-op: online, LAN

    Action-RPG base builder where you defend your base from alien waves on a hostile planet.

    • Windows
    • Deck Playable
    • Online co-op

    Steam

  6. Age of Darkness: Final Stand

    Co-op: online

    Survival RTS and base defense against hordes of nightmares; last stand at the light.

    • Windows
    • Deck Playable
    • Online co-op

    Steam

  7. Dungeon Defenders

    Co-op: online, local

    Action RPG meets tower defense with co-op, heroes, and tower building in dungeons.

    • Windows
    • Deck Unsupported
    • Local co-op
    • Online co-op

    Steam

  8. Orcs Must Die! 3

    Co-op: online

    Third-person trap-and-tower defense with waves of orcs and satisfying combos.

    • Windows
    • Deck Verified
    • Online co-op

    Steam

  9. Sanctum 2

    Co-op: online

    First-person shooter tower defense with co-op and tower placement in 3D space.

    • Windows · Mac · Linux
    • Deck Verified
    • Online co-op

    Steam

  10. Dungeon Defenders 2

    Co-op: online

    Free-to-play sequel with more heroes, towers, and co-op tower defense action.

    • Windows
    • Deck Unsupported
    • Online co-op
    • Free on Steam

    Steam

  11. Legion TD 2

    Co-op: online

    Competitive multiplayer tower defense with autobattler-style waves and lanes.

    • Windows · Mac
    • Deck Playable
    • Online co-op
    • PvP

    Steam

  12. Orcs Must Die! 2

    Co-op: online, LAN

    Co-op trap-and-tower defense with orcs, traps, and third-person action.

    • Windows
    • Deck Playable
    • Online co-op

    Steam

  13. The Last Friend

    Co-op: local

    Tower defense blended with beat-’em-up action: rescue doggos and place defenses across a post-apocalyptic campaign.

    • Windows
    • Deck Playable
    • Local co-op

    Steam

  14. Axon TD: Uprising

    Co-op: online

    Modern tower defense with expandable map boundaries, mazing, co-op, and roguelite runs.

    • Windows
    • Deck Playable
    • Online co-op

    Steam

  15. Bloons TD 5

    Co-op: online

    Classic Bloons tower defense with multiple towers and upgrade paths.

    • Windows · Mac
    • Deck Playable
    • Online co-op
    • Android (paid, ads + IAP)
    • iOS (paid)

    SteamGoogle PlayApp Store

  16. Iron Brigade

    Co-op: online

    Third-person tower defense with mechs and trench warfare.

    • Windows
    • Deck Unsupported
    • Online co-op

    Steam

  17. Plants vs. Zombies: Garden Warfare 2

    Co-op: online

    Third-person shooter and action-defense in the PvZ universe: classes, co-op, and garden ops.

    • Windows
    • Deck Unsupported
    • Online co-op
    • PvP

    Steam

  18. Sanctum

    Co-op: online

    First FPS tower defense from Coffee Stain: place towers then fight in first person.

    • Windows · Mac
    • Deck Playable
    • Online co-op

    Steam

  19. X-Morph: Defense

    Co-op: local

    Top-down shooter tower defense: build towers and pilot a morphing alien fighter.

    • Windows
    • Deck Playable
    • Local co-op

    Steam

  20. CastleStorm

    Co-op: local

    Castle building and defense with projectiles, troops, and real-time strategy.

    • Windows
    • Deck Verified
    • Local co-op

    Steam

  21. Minion Masters

    Co-op: online

    Competitive card game with tower defense and real-time minion battles.

    • Windows · Mac
    • Deck Unsupported
    • Online co-op
    • PvP
    • Free on Steam
    • Android (free, IAP)

    SteamGoogle Play

  22. Rock of Ages 2: Bigger & Boulder

    Co-op: local

    Action tower defense: roll a boulder, build defenses, and crush the enemy base.

    • Windows
    • Deck Playable
    • Local co-op
    • PvP

    Steam

Our picks and rankings

Common questions

Which tower defense games have couch co-op?

Of the games on this list, Steam lists local or split-screen co-op for: Defense Grid 2, Dungeon Defenders, The Last Friend, X-Morph: Defense, CastleStorm, Rock of Ages 2: Bigger & Boulder.

Where does the co-op information come from?

From each game’s Steam store categories (Online Co-op, Shared/Split Screen Co-op, LAN Co-op). Store facts were checked on 2026-11-03.