Survivors Under Siege blends action RTS and tower defense into a minimalist tactical experience. Position your units wisely and strike at the perfect moment to stand against waves of zombies and mutants.

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Free Demo

Play Survivors Under Siege Demo

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About This Demo

A mutagenic virus has spread across the world, transforming the infected into deadly zombies and mutant creatures. Humanity’s last hope lies in small outposts equipped with Purifiers — devices that release cleansing fumes to neutralize the airborne virus.

Command a squad of survivors. Defend each base from waves of enemies. Every level is a fight to keep the Purifiers running — and stay alive.

Unique Levels

Each level features a different layout and challenge. Purifiers attract enemies — you must protect them to survive and win.

Strategic Skill Tree

Unlock a wide range of upgrades that shape your tactics and offer new ways to play.

Resources

Weapons and tools are limited. Use them smartly to overcome each level.

Demo Limitations

  • You can play the first 6 levels.

  • You can choose upgrades from the first 16 out of 128.

  • You can save the game normally.

  • You won’t be able to play any additional modes unlocked after completing the full game.

System Requirements

    Minimum:
    • Requires a 64-bit processor and operating system
    • OS: Windows 10+
    • Processor: Dual-core 2.0 GHz+
    • Memory: 4 GB RAM
    • Graphics: Integrated or dedicated GPU
    • Storage: 200 MB available space
    Recommended:
    • Requires a 64-bit processor and operating system
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