Caltrops are deployable spikes that can be placed, and deal damage when zombies walk over them. Deals a fairly high amount of damage, and can be placed in quantity.
|Barbed Spikes||Enemies hit will start to bleed, moving slower and taking damage over time.||Bleed +1000||1||$4000|
|Sharpened Spikes||Increases the damage of your Caltrops||Damage +50%||3||$1750|
|Hardened Spikes||Increases the durability of your Caltrops.||Durability x2||3||$2500(1) $5000(2) $10000(3)|
|Trapper||Increases the maximum number of Caltrops you can place and hold.||Max Amount +3||2||$2500|
- If you have a Barricade, place these in front of the Barricade to increase its lifespan.
- If you are camping at the Ammo Box, placing these nearby can help with rushes.
- They are able to hit wraiths
Placing them at right places on the path can defend against Wraiths and zombies on some maps, as they initially follow a fixed path.
With the Barbed Spikes upgrade, Wraiths will create blood particles, making them easier to spot.