Layer 1: first contact
Put barriers and traveled-path traps where they actually delay or damage the incoming group. The goal is not to fill the entrance; it is to buy useful firing time.
Layer 2: sustained pressure
Protect Cross Bows, Cannons, Mortars, Catapults, or other ranged objects behind the line they support. Watch where enemies bunch up and where weapons stop contributing.
Layer 3: cleanup and core protection
Keep a final answer for survivors. If the same enemy type repeatedly escapes, adjust this layer before rebuilding the entire front.
One-variable test
- Record the first place or moment the layout fails.
- Move, add, or upgrade one object.
- Repeat the same wave with the rest unchanged.
- Keep the change only if the failure happens later.
There is no creator-published universal coordinate map in the sources checked. Camera angle, range changes, and inventory differences make pixel-perfect copies unreliable.