Pistorder Mod (1.21.8, 1.20.1) – Visualize Piston Movements in Minecraft

Redstone engineering just got a massive upgrade. Pistorder Mod (1.21.8, 1.20.1) is a powerful utility tool designed for Minecraft players who love automation, machines, and Redstone contraptions. With this mod, you can easily preview how pistons will behave before activating them no more guesswork, trial and error, or broken builds. A simple right-click on a piston shows exactly how blocks will move, the order of movement, and even if the system is doomed to fail due to immovable blocks. Whether you’re designing a flying machine or compact door system, Pistorder is an essential debugging and planning tool.

Features:

Instant Piston Previews
Right-click a piston with an empty hand to see a visual overlay of what will happen when the piston activates.
Push Simulation (Up to 128 Blocks)
The mod displays the full push path up to the game’s 128-block piston limit and shows exactly how blocks will shift.
Failure Feedback
If a piston can’t activate due to a problem (like pushing too many blocks or hitting bedrock), the overlay still shows the expected outcome, helping you debug more effectively.
Direct & Indirect Modes
When an air gap exists between the piston and the first block, clicking again toggles to indirect mode, simulating the effect as if the piston pushes the nearest block.
Display Controls
Click the piston again to hide the overlay, or press the default P hotkey to clear all piston previews instantly.
Debugging Immovable Block Errors
Even if a push attempt fails due to an unmovable object, the visualization gives insight into how it would have moved, with slight inaccuracies depending on the situation.

Screenshots:

Requires:

Fabric Modloader

Fabric API

How to install:

How To Download & Install Mods with Minecraft Forge

How To Download & Install Fabric Mods

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Why Use Pistorder Mod?

Redstone systems can be complex and frustrating, especially when a piston mechanism doesn’t work as expected. Pistorder removes the mystery by showing exactly what will happen before anything moves. It’s especially useful in large piston-based builds like hidden doors, elevators, flying machines, or automated farms. Instead of testing by repeatedly powering the piston, you can plan everything visually with just a click. This saves time, improves build accuracy, and helps both beginners and advanced engineers master Redstone mechanics.