Skyblock Builder
I don't know my version or loader
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
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- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21.1, 1.20.1, 1.19.2
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on CurseForge — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as SkyblockBuilder-1.18.2-3.3.23.jar — drop this file into the mods folder
- Download size: 264 KB
- Download link checked 8 Sept 2026 — working
These come from our own check of the pack file, not from the source page.
![Minecraft UniversIO | BUILDING A UNIVERSE IN MINECRAFT! #1 [Modded Questing Skyblock]](https://i.ytimg.com/vi/OowYCSnrCJ4/mqdefault.jpg)
