CurseForge · Minecraft mod
Block Event Separator
See the world one block event at a time.
Quick answer
Which Block Event Separator release should I use?
Block Event Separator [26.3] Block Event Separator 1.3.0 targets 26.3 with Fabric, Quilt. The project page does not say whether this file belongs on the client, dedicated server, or both. No extra mods listed for this file.
Where it goes
Is Block Event Separator required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
The source does not explicitly classify this release as client-only or server-only.
What else does Block Event Separator [26.3] Block Event Separator 1.3.0 need?
[26.3] Block Event Separator 1.3.0. Change the file and its required mods may change too.
This file does not list any required mods. Do not add a library just because a different file uses it.
We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add Block Event Separator without breaking your instance.
Built for Block Event Separator [26.3] Block Event Separator 1.3.0. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use [26.3] Block Event Separator 1.3.0. It targets 26.3 with Fabric, Quilt; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
This file does not list any required mods. Do not add a library just because a different file uses it.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside [26.3] Block Event Separator 1.3.0. It opens that exact file at the source.
About this project
What does Block Event Separator add?
Block Event Separator allows you to see the inner workings of your piston contraptions by separating block events in real-time. While server-side behavior is perfectly preserved, on the client block events are separated by 1gt worth of time, allowing you to see the order in which pistons extend and/or retract within any tick.
The mod can be activated in three modes using the /blockeventseparator mode [new mode] command:
depth: Block events are separated by depth (colloquially known as "microticks" or "BED"). Block events at the same depth start animating simultaneously.index: Block events are separated by index, based on the order in which they were executed. Each block event starts after the previous.block: Moving blocks are separated by index, based on the order in which they were created.
The pace at which the game steps through the block events can be changed using the /blockeventseparator interval [new interval] command. The separation interval is given in ticks and should be greater than 0.
Note: Block Event Separator does not separate the execution of block events server-side, but client-side.
G4mespeed Mod Compatibility
Using Block Event Separator in combination with G4mespeed (version 1.3.0 or later) gives several benefits:
- More consistent piston animations.
- Change the separation mode from the Server Settings section of the G4mespeed Menu.
- The separation mode will be saved and loaded from G4mespeed's options rather than resetting when the game is restarted.
Note: only releases for Minecraft 1.16 and above have G4mespeed integration.
Carpet Mod Compatibility
Block Event Separator is compatible with Carpet's tick freeze functionality, allowing you to step through individual block events at your own leisurely pace. For the best results, Carpet mod should be installed client-side, with the smoothClientAnimations rule enabled, or G4mespeed should be installed client-side to properly sync the client to the server.
Project description from CurseForge.
Pick your setup
Block Event Separator by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.3
2 loader builds26.2
2 loader builds26.1.2
2 loader builds26.1.1
2 loader builds26.1
2 loader builds1.21.11
2 loader builds1.21.10
2 loader builds1.21.9
2 loader builds1.21.8
2 loader builds1.21.7
2 loader builds1.21.6
2 loader builds1.21.5
2 loader buildsShowing the newest 12 of 48 game versions. Older files are in the list below.
Check the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Block Event Separator versions and loaders
[26.3] Block Event Separator 1.3.0
block-event-separator-mc26.3-1.3.0.jar
19 Oct 2026
[26.2] Block Event Separator 1.3.0
block-event-separator-mc26.2-1.3.0.jar
26 Jul 2026
[26.1] Block Event Separator 1.3.0
block-event-separator-mc26.1.2-1.3.0.jar
9 May 2026
[1.21.11] Block Event Separator 1.3.0
block-event-separator-mc1.21.11-1.3.0.jar
8 Jan 2026
[1.21.9] Block Event Separator 1.3.0
block-event-separator-mc1.21.9-1.3.0.jar
26 Oct 2025
[1.21.6] Block Event Separator 1.3.0
block-event-separator-mc1.21.6-1.3.0.jar
26 Oct 2025
[1.21] Block Event Separator 1.3.4
block-event-separator-mc1.21-1.3.4.jar
25 May 2025
[1.20.2] Block Event Separator 1.3.1
block-event-separator-mc1.20.2-1.3.1.jar
25 May 2025
[1.20] Block Event Separator 1.3.1
block-event-separator-mc1.20.1-1.3.1.jar
25 May 2025
[1.21.5] Block Event Separator 1.3.0
block-event-separator-mc1.21.5-1.3.0.jar
28 Apr 2025
[1.21.2] Block Event Separator 1.3.1
block-event-separator-mc1.21.2-1.3.1.jar
1 Mar 2025
[1.21] Block Event Separator 1.3.3
block-event-separator-mc1.21-1.3.3.jar
1 Mar 2025
Looking for an older file? The official CurseForge project page is in Resources.