01The grid and the king
Your fortress stands on a 14 × 14 grid, three blocks deep. The king waits in the middle. The enemy wins when a blast reaches him with no blocks left in between — so everything you place is about keeping something between the king and the sky.
Blocks stay frozen until a blast hits them or the block under them disappears. A block can hang out up to three cells from its support; beyond that, it falls.
- Build the king a roof first, walls second.
- Leave no straight line of sight from the enemy cannon to the king.
02Materials: what each block is worth
Every cell costs points from your budget. Cheap blocks let you build wide; expensive ones let you build thick. The best forts mix them: iron where the shots land, stone for the frame, wood where it is safe.
- Put iron on the side that faces the enemy cannon.
- Rubber on the front wall sends cannonballs back the way they came.
| Material | Strength | Cost | Weight | Special |
|---|---|---|---|---|
 Wood | 6 | 1 | 1 | Cheap and light. Burns, and fire spreads from block to block. |
 Stone | 14 | 2 | 2 | The all-rounder: twice as strong as wood for twice the price. |
 Iron | 32 | 4 | 3.5 | The toughest block. Lightning jumps through it. |
 Rubber | 12 | 3 | 1.2 | Shots bounce off it, and blasts do half damage to it. |
 TNT | 4 | 2 | 1 | Explodes when hit and sets off its neighbours. |
Your build budget is 150 points, plus 25 for every upgrade level of your fort (up to ★10).
03Shape beats size
A low, wide fort survives longer than a tall, thin tower: when a tower loses one support, everything above it falls. Spread the weight, and give every high block two paths down to the ground.
Presets place a ready wall or tower in one tap, mirror copies one side to the other and undo takes back the last block — use them, 45 seconds go fast.
- Two short towers are stronger than one tall one.
- Keep the king low: high kings fall with their floors.
04Mistakes that lose battles
Gunpowder next to the king turns one lucky hit into a chain of explosions. Wood next to wood lets a single fire shell burn half the fort. And a fort with no roof is an open invitation to mortars and Cossack Hail.
- Keep gunpowder at the edges, never in the core.
- Break up long wooden walls with a stone block — fire stops there.
Build it strong. Then go and knock down someone else’s.
