CurseForge · Minecraft mod
Skyblock Builder
Let you create a custom skyblock island via config
Quick answer
Which Skyblock Builder release should I use?
Skyblock Builder SkyblockBuilder-1.20.1-5.1.33.jar targets 1.20.1 with Forge. The project page does not say whether this file belongs on the client, dedicated server, or both. All 1 required mods have matching files.
Where it goes
Is Skyblock Builder 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 Skyblock Builder SkyblockBuilder-1.20.1-5.1.33.jar need?
SkyblockBuilder-1.20.1-5.1.33.jar. Change the file and its required mods may change too.
Install LibX first. We found matching files for this game-version and loader setup. 2 come through another mod in the chain.
2 extra mods were pulled in by other dependencies. Indented rows show who needs each one. We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add Skyblock Builder without breaking your instance.
Built for Skyblock Builder SkyblockBuilder-1.20.1-5.1.33.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use SkyblockBuilder-1.20.1-5.1.33.jar. It targets 1.20.1 with Forge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install LibX first. We found matching files for this game-version and loader setup. 2 come through another mod in the chain.
- 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 SkyblockBuilder-1.20.1-5.1.33.jar. It opens that exact file at the source.
About this project
What does Skyblock Builder add?


This mod allows you to create custom skyblock islands via config.
You simply create a schematic file using the structure block from vanilla Minecraft, or the Structure Saver item and set possible spawn points for the island.
This mod is required on server and client side. It adds a "Skyblock" world type at "More World Options..." setting when creating a new world on client side.
For servers, use "skyblockbuilder:custom_skyblock" (1.18+: "skyblockbuilder:skyblock") as world type in server.properties or in forge-common.toml (config).
This mod requires LibX.
Help translating the mod here on One Sky.

A bit low and German, but maybe helpful
Project description from CurseForge.
Pick your setup
Skyblock Builder by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
26.1.2
1 loader build1.21.1
1 loader build1.20.1
2 loader builds1.19.2
1 loader build1.18.2
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Skyblock Builder versions and loaders
SkyblockBuilder-26.1.0.jar
6 Sept 2026
SkyblockBuilder-21.1.36.jar
4 Sept 2026
SkyblockBuilder-21.1.35.jar
30 Aug 2026
SkyblockBuilder-21.1.34.jar
6 Aug 2026
SkyblockBuilder-21.1.33.jar
6 Aug 2026
SkyblockBuilder-21.1.32.jar
2 Aug 2026
SkyblockBuilder-1.20.1-5.1.33.jar
7 Jun 2026
SkyblockBuilder-21.1.31.jar
7 Jun 2026
SkyblockBuilder-21.1.30.jar
7 Jun 2026
SkyblockBuilder-21.1.29.jar
20 Apr 2026
SkyblockBuilder-21.1.28.jar
20 Apr 2026
SkyblockBuilder-1.20.1-5.1.32.jar
19 Apr 2026
Looking for an older file? The official CurseForge project page is in Resources.
