One-Time Purchase

Unlock the Full FibDefense Experience

One purchase. Everything. Forever.

All 6 themes, the full Puzzle journey, Continuous & Endless modes, every difficulty including Zeckendorf, faster speed controls, 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
Puzzle Mode	8 Levels	All 34 Levels
Continuous Mode	—	Creep count
Endless Mode	—	Wave count
Relaxed + Normal	✓	✓
Hard + Expert	—	✓
Zeckendorf Difficulty	—	✓
Speed Control	1× / 2×	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.

🔓

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.

Questions? Contact Support