📖 How to Play
🎯 Goal
🏰Defend your tower from zombie waves. If 10 zombies reach the tower, the game ends. Survive as many waves as possible!
💡 Earning Coins
📚Tap +Coins to open a quiz. Answer questions to earn coins. Choose a subject, then a difficulty level.
😊Easy: +1 🪙
🤔Medium: +2 🪙
🔥Hard: +3 🪙 — but a wrong answer costs −1 🪙
🏹 Defenders
| Unit | Buy | Upgrade | Max | Notes |
| 🏹 Archer | 10 🪙 | 6→9→14…🪙 | 5 | Fast, low damage |
| 🎯 Sniper | 14 🪙 | 9→14→20…🪙 | 5 | Slow, high damage, long range |
| Upgrade cost ×1.5 each level. Click a unit to select it, then press Upgrade. |
🧱 Walls
🧱Build up to 2 walls (8 🪙 each). Walls block zombies and can be upgraded twice to become taller and stronger.
🐉 Dragon
| Level | Cost | Recharge | Fire rate |
| ★ Lv1 | 25 🪙 | 25 sec | 4 sec |
| ★★ Lv2 | +35 🪙 | 16 sec | 3.2 sec |
| ★★★ Lv3 | +50 🪙 | 10 sec | 2.5 sec |
🔥Dragon has 2 charges. It automatically targets the strongest zombie and breathes fire, killing all enemies on screen.
🎓 Grade System
📊Choose your age group (8–11 or 12–15). Questions are tailored to your level with Easy, Medium, and Hard in all 5 subjects.
🔁Questions won't repeat until 80% of the pool is used — then they shuffle again.