Best Actuator Blocks of 2026

Frequently Asked Questions (FAQs)

1. What is an actuator block?

The Actuator is a device that allows any solid block to be toggled on and off much like Active Stone Blocks. Actuators are placed much like wire; they can be placed over blocks or in empty space with or without walls.

2. How do you use actuator blocks?

It has to be connected with wiring to function. When activated, the tile it is on toggles between active and inactive state, effectively allowing any block to be toggled like active or inactive stone blocks. Like wire, Actuators are normally invisible and only become visible when a mechanism item is selected.

3. What do Actuators do?

An actuator is a device that uses a form of power to convert a control signal into mechanical motion. From electric door locks in automobiles, to ailerons on aircraft, actuators are all around us.

4. What is an actuator rod?

The Actuation Rod is a post-Skeletron, craftable tool which allows directly switching the states of Actuators without having to activate them via wire.

5. What is an actuated block Terraria?

Basically, it sets blocks into the background so you, enemies, NPCs, items, and liquids can go through. Then, it toggles it back into the foreground. To activate it, connect a wire to it, and connect that wire to a switch.