Premium Theme

Military

Bunkers, artillery, and anti-tank emplacements. The enemy advances in disciplined formations. Your fire discipline must be absolute — every shot must count for exactly the right amount.

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Tower Arsenal

All 8 tower tiers — each deals its Fibonacci number in damage

T1
1
dmg
T2
2
dmg
T3
3
dmg
T4
5
dmg
T5
8
dmg
T6
13
dmg
T7
21
dmg
T8
34
dmg

Enemy Waves

9 enemy tiers — HP increases with each tier, demanding more complex Fibonacci solutions

Tier 0
Tier 1
Tier 2
Tier 3
Tier 4
Tier 5
Tier 6
Tier 7
Tier 8
Boss Encounter

Iron Leviathan

A mobile fortress bristling with armor plating. Sequential Fibonacci strikes are the only way to punch through.

Unlock Military

This theme is part of the premium unlock — along with all other themes, endless mode, and every difficulty level.

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One-time purchase — unlocks all 7 themes and everything else.