A roguelike tower defense built around permanent choices. Draft one card each wave, commit to six tower slots, and stack modifiers that change how your defenses fight. Survive 20 waves solo or in 2-4 player co-op. Try the free demo.

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About This Game

Slot Theory is a roguelike tower defense. Each wave gives you one pick from 5-6 cards: you can place a tower, attach a modifier to a tower or pick a special card when available.

Stack modifiers, combine towers and trigger "Tower Surge" events. The waves run automatically while you choose targeting modes and time your operator's ability.

Build together

Play solo or defend a shared lane in 2-4 player online co-op. Each player drafts their own build and chooses their own operator, while everyone shares the lives.

System Requirements

    Minimum:
    • OS: Windows 10 64-bit
    • Processor: Intel Core i3 / AMD equivalent (dual-core)
    • Memory: 2 GB RAM
    • Graphics: Intel HD 4000 or equivalent (DirectX 11 / Vulkan compatible)
    • DirectX: Version 11
    • Storage: 500 MB available space
    Recommended:
    • OS: Windows 10/11 64-bit
    • Processor: Intel Core i5 / AMD Ryzen 5
    • Memory: 4 GB RAM
    • Graphics: Dedicated GPU (DirectX 11 / Vulkan)
    • DirectX: Version 11
    • Storage: 500 MB available space