If Blood Moons or horde attacks have you feeling like “my walls won’t hold,” the first thing to do is lay wood spikes (and later iron spikes) around your perimeter. They automatically chip away at approaching zombies without you lifting a finger, which makes up for your lack of firepower in the early game. That said, place them wrong and their effectiveness is cut in half.
Why You Shouldn’t Set Them Flush Against the Wall
- A zombie that touches a spike directly will start smashing that spike to break it. Place them right in front of your wall, and both the spikes and the wall get targeted together, so nothing lasts long.
- Lay them one or two tiles ahead of the wall, along the enemies’ approach route, and zombies take damage just by passing through — making the spikes much harder to destroy.
- Instead of a single row, use a band of two or three rows so you keep grinding them down even if they leap over or go around.
Placement Basics
- Funnel the path: Rather than ringing your entire base, it’s more resource-efficient to lay them thick only across the front where enemies gather.
- Combine with elevation: Place spikes in a trench dug one block down, and zombies drop in and get stuck, extending the time they spend taking damage.
- Don’t skimp on materials: Wood spikes can be mass-produced from wood alone. Accept them as consumables meant to break.
Don’t Forget Maintenance
- Every time a spike grinds down an enemy, its durability drops and it looks more and more crushed. Crushed ones lose effectiveness, so come morning, fix them with a repair hammer or replace them.
- Once you can afford it, upgrade to iron spikes. They gain damage and durability, making them your main line of defense for Blood Moons.
Summary
- Spikes aren’t a “shield for your wall” — they’re a “grinder on the path.”
- The trick is to lay them away from the wall, in a band, along the approach route.
- Treat them as consumables and make morning repairs part of your routine.
If you have room to spare, adding an electric fence or dart trap beyond the spike band creates a three-stage setup — grind, stall, finish — making your interception far more stable.
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