Structures

Your starting inventory includes the Wooden Wall and the Wooden Miner among 19 buildable structure types. The building limits below apply to each player’s active structures, even in a group; tiers within a family share their limit. The structure trees show the unlock paths. The levels below are minimums; unlocking structures also uses structure upgrade points, and later tiers require the preceding tier.

Walls

Structure	Health	Cost	Limit	Base destroy reward
Wooden Wall	350	50 wood	32	7.5 wood, 10 experience
Stone Wall	700	50 wood, 100 stone	32	7.5 wood, 15 stone, 20 experience
Reinforced Stone Wall	1,400	100 gold, 50 wood, 100 stone	32	50 gold, 25 wood, 50 stone, 40 experience

Walls offer Stone Wall from level 3 and Reinforced Stone Wall from level 10.

Spikes

Structure	Health	Cost	Limit	Base destroy reward
Wooden Spike	120	20 wood	16	10 wood, 10 experience
Stone Spike	200	20 wood, 50 stone	16	10 wood, 25 stone, 20 experience
Reinforced Stone Spike	300	100 gold, 60 wood, 120 stone	16	50 gold, 30 wood, 60 stone, 40 experience

Spikes require level 3 for Wooden Spike, level 6 for Stone Spike and level 10 for Reinforced Stone Spike.

Miners

Structure	Health	Cost	Limit	Base destroy reward
Wooden Miner	50	10 wood	12	5 wood, 10 experience
Stone Miner	75	10 wood, 20 stone	12	5 wood, 10 stone, 20 experience
Reinforced Stone Miner	100	100 gold, 20 wood, 40 stone	12	50 gold, 10 wood, 20 stone, 40 experience

Miners offer Stone Miner from level 4 and Reinforced Stone Miner from level 10.

Turrets

Structure	Health	Cost	Limit	Base destroy reward
Wooden Turret	60	50 wood	4	25 wood, 10 experience
Stone Turret	120	50 wood, 100 stone	4	25 wood, 50 stone, 20 experience
Reinforced Stone Turret	180	100 gold, 100 wood, 200 stone	4	50 gold, 50 wood, 100 stone, 40 experience

Turrets require level 4 for Wooden Turret, level 6 for Stone Turret and level 10 for Reinforced Stone Turret.

Pads

Structure	Health	Cost	Limit	Base destroy reward
Repair Pad	25	30 wood	4	15 wood, 20 experience
Health Pad	1	30 wood	4	15 wood, 20 experience
TNT	5 placed / 100 thrown	400 gold, 250 wood, 250 stone	3	None
Landmine	50	100 gold	12	50 gold

The pad tree offers a choice of Repair Pad, Health Pad, TNT or the Landmine from level 8.

Other

Structure	Health	Cost	Limit	Base destroy reward
Anti Structure Pad	50	40 wood	2	20 wood, 20 experience
Speed Boost	50	30 wood, 30 stone	16	15 wood, 15 stone, 10 experience
Honeycomb	200	30 wood	8	15 wood, 20 experience

Anti Structure Pad, Speed Boost and Honeycomb are alternatives in the Other tree from level 4.