Trap Maker

The Trap Maker is unlocked at Keep level 5. At this building, Traps can be build for better defending the Keep. Different and more powerful Traps are unlocked as it's upgraded, which is limited by the level of the Watchtower. Tap on "Upgrade" and hit the "i" button for a full breakdown of every trap available at each level. Tap "Train" and hit the "i" button there for information about individual trap.