One-Time Purchase

Unlock the Full FibDefense Experience

One purchase. Everything. Forever.

All 6 themes, endless mode, every difficulty level, boss encounters, and all future content updates.

No subscriptions. No ads after unlocking. No pay-to-win mechanics.

Free vs Premium

Feature Free Premium
Themes Fantasy + Sci-Fi All 6 Themes
Classic Mode 20 Waves 20 Waves
Continuous Mode — Creep count
Endless Mode — Wave count
Relaxed + Normal ✓ ✓
Hard + Expert — ✓
Speed Control — 1× / 2× / 4× / 8×
Boss Encounters — ✓
Future Content — ✓
Price Free One-Time Purchase

All 6 Themes

Each theme has a unique visual style, tower designs, enemies, and boss character.

Fantasy

Included Free

Ancient towers defend a magical realm against creatures from beyond the veil.

Sci-Fi

Included Free
🛸

High-tech turrets repel waves of alien invaders across a distant colony world.

Military

Premium Unlocked
🪖

Tactical defense installations hold the line against armored enemy assault.

Retro

Premium Unlocked
🕹️

8-bit nostalgia meets mathematical precision in a pixelated battlefield.

Pirates

Premium Unlocked

Cannon towers guard the harbor against sea monsters and rival buccaneers.

Horror

Premium Unlocked

Survive the endless dark. The undead don't stop — neither can you.

The Full Experience

Unlock everything in one tap from inside the app.

All six themes
Continuous mode in action
High score leaderboard
🔓
Unlock Once
One purchase, no expiry, no re-buying after app updates.
🚫
Ad-Free
Premium permanently removes all ads. No banners, no interstitials.
⚖️
No Pay-to-Win
Premium is cosmetic and content only — math skill wins games.
🔮
Future Content
New themes and modes included when added.

Ready to Go Premium?

The unlock is available directly inside the app. Download free, then upgrade from the in-game menu whenever you're ready.

Coming Soon to the App Store

Questions? Contact Support