CurseForge · Minecraft mod
Bugrock
💀 Mocking the bugs of the Bedrock edition
Quick answer
Which Bugrock release matches 26.1.2 Forge?
bugrock-v1.0.jar targets 1.21.2-Snapshot, 1.21, 1.21.6-snapshot with Fabric, Forge, NeoForge. 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 Bugrock 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 bugrock-v1.0.jar need?
bugrock-v1.0.jar on 26.1.2 Forge. Every mod below is checked against that same setup.
This file does not list any required mods. Do not add a library just because a different file uses it.
This file does not list any required or optional mods.
Before you install it
Add Bugrock without breaking your instance.
Built for bugrock-v1.0.jar on 26.1.2 Forge. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use bugrock-v1.0.jar. It targets 1.21.2-Snapshot, 1.21, 1.21.6-snapshot with Fabric, Forge, NeoForge; 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 bugrock-v1.0.jar. It opens that exact file at the source.
About this project
What does Bugrock add?
Bugrock
A mod/datapack that recreates common bugs inherent to the Bedrock edition of the game.
Bugs
I've added the most common bugs I can recall:
Regular freezing. When a lot of monsters are near the player, the game freezes, and after a few seconds, the mobs stop lagging and move faster than before.

Disappearing blocks. When a player crouch-walks and builds blocks, they notice after a while that they're starting to disappear. This happens right before the player's eyes, and the key is to not be over a chasm.

Chunk loading error. When a player flies on elytras, chunks often don't have time to load, so the player doesn't see them loading. But sometimes the game simply ignores chunk loading and returns an error. At least the damage doesn't go away.
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Rollback The first useful bug is when the game forgets the player's last actions and returns them to their previous position.

Lightning (bonus). Who hasn't experienced all their belongings falling out of their pockets after death, only to have them immediately burned by lightning? Every time. Enabled/disabled with the command
/trigger bizcub.bugrock.lightning.trigger.
Dependencies
- Fabric loader requires Fabric API
Project description from CurseForge.
Pick your setup
Bugrock by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.2
4 loader builds26.1.2
4 loader builds26.1.1
4 loader builds26.1
4 loader builds1.21.11-snapshot
4 loader builds1.21.11
4 loader builds1.21.10
4 loader builds1.21.9-snapshot
4 loader builds1.21.9
4 loader builds1.21.8
4 loader builds1.21.7
4 loader buildsShowing the newest 12 of 31 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
Bugrock versions and loaders
bugrock-v1.0.jar
23 Feb 2026
Looking for an older file? The official CurseForge project page is in Resources.