Defense

Research Tree

Research technology in the Defense tree to increase the strength of the Castle Wall, and to unlock and upgrade Traps.

Available Research

	Trap Crafting I
Spikes	Archer Tower	Spike Boulders
Trap Defense I	Trap Power I	Trap Durability I
	Wall Strength I
Metal Spikes	Sniper Tower	Rolling Logs
	Wall Strength II
Hot Iron Spikes	Fortified Tower	Flame Boulders
	Wall Strength III
Burning Spikes	Skyscraper	Burning Logs

• Total Might: 8,852,554
• Total time: 1,471d 50m

Tips

Increasing Castle Wall HP through the Wall Strength researches will also increase the time required for the player's Castle Wall to be repaired after being burned. Players cannot enter Dragon Arena without full Castle Wall HP.