Free Theme

Fantasy

The oldest magic meets the oldest math. Fibonacci-powered towers of stone and sorcery hold back a tide of mythical creatures. Dragons, golems, and wraiths all fall to the same mathematical truth.

Included Free in Every Download

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

The Pale Sovereign

An ancient lich whose undead form must be unraveled tower by tower — its staggering HP demands your full Fibonacci arsenal.

Included Free — No Purchase Required

Download FibDefense to play the Fantasy theme at no cost, alongside Sci-Fi.