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Skyblock BuilderMinecraft mod for 1.21.1

Let you create a custom skyblock island via config

newest supported 1.21.1Map InformationWorld Dimensions
Latest version
SkyblockBuilder-21.1.32.jar
Minecraft
1.16.4 to 1.21.1
Java
Java 21+
Loaders
NeoForge, Forge
Licence
not stated
Downloads
20.4M
Updated
1 mo ago
Available on
CurseForge

Minecraft versions

Every version Skyblock Builder declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1NeoForge, Forge21+declared8 Aug 2024
1.20.1NeoForge, Forge17+declared12 Jun 2023
1.19.2NeoForge, Forge17+declared5 Aug 2022
1.19.1Forge, NeoForge17+declared27 Jul 2022
1.19NeoForge, Forge17+declared7 Jun 2022
1.18.2NeoForge, Forge17+declared28 Feb 2022
1.18.1NeoForge, Forge17+declared10 Dec 2021
1.17.1NeoForge, Forge16+declared6 Jul 2021
1.16.5NeoForge, Forge8+declared14 Jan 2021
1.16.4NeoForge, Forge8+declared29 Oct 2020

Download

From Skyblock Builder’s own host. Nothing is re-hosted here.

All 40 releases
SkyblockBuilder-21.1.32.jarbeta2 Aug 2026

SkyblockBuilder-21.1.32.jar · 0.6 MB · for 1.21.1

Download latest
386838f1feb3…
Older versions24
  • SkyblockBuilder-1.20.1-5.1.33.jar7 Jun 20261.20.10.4 MB46.4k downloads620ae88776fd…Get
  • SkyblockBuilder-21.1.31.jar7 Jun 20261.21.10.6 MBc13df34bb22a…Get
  • SkyblockBuilder-21.1.30.jar7 Jun 20261.21.10.6 MB7b7e934158b2…Get
  • SkyblockBuilder-21.1.29.jar20 Apr 20261.21.10.6 MB9e2ecd1a4d49…Get
  • SkyblockBuilder-21.1.28.jar20 Apr 20261.21.10.6 MB9bee84e9fb97…Get
  • SkyblockBuilder-1.20.1-5.1.32.jar19 Apr 20261.20.10.4 MB379 downloadsd024959bd085…Get
  • SkyblockBuilder-21.1.27.jar17 Apr 20261.21.10.6 MBdafa4c2f5a01…Get
  • SkyblockBuilder-1.20.1-5.1.31.jar17 Apr 20261.20.10.4 MB260 downloads70b5e8b2463a…Get
  • SkyblockBuilder-1.20.1-5.1.30.jar17 Mar 20261.20.10.4 MB200 downloads5837971f1a6c…Get
  • SkyblockBuilder-21.1.26.jar17 Mar 20261.21.10.6 MB8e2ddb926af8…Get
  • SkyblockBuilder-1.20.1-5.1.29.jar15 Mar 20261.20.10.4 MB434 downloads57e9207e32bb…Get
  • SkyblockBuilder-21.1.25.jar15 Mar 20261.21.10.6 MBd910ca884bbe…Get
  • SkyblockBuilder-21.1.24.jar12 Jan 20261.21.10.6 MB08de7810bfa8…Get
  • SkyblockBuilder-21.1.23.jar26 Dec 20251.21.10.5 MB461 downloads7882b92fea2f…Get
  • SkyblockBuilder-21.1.22.jar1 Dec 20251.21.10.5 MB13.3k downloads0545299a4624…Get
  • SkyblockBuilder-21.1.21.jar1 Dec 20251.21.10.5 MB24 downloads30d0dd70dbfe…Get
  • SkyblockBuilder-21.1.20.jar10 Nov 20251.21.10.5 MB33f810411bed…Get
  • SkyblockBuilder-1.20.1-5.1.28.jar10 Nov 20251.20.10.4 MB260.8k downloadse57a15c932a6…Get
  • SkyblockBuilder-21.1.19.jar2 Nov 20251.21.10.5 MBed36cb5e2807…Get
  • SkyblockBuilder-21.1.18.jar1 Sept 20251.21.10.5 MB472ee66291c8…Get
  • SkyblockBuilder-21.1.17.jar28 Jul 20251.21.10.5 MB4757d85a700a…Get
  • SkyblockBuilder-1.20.1-5.1.27.jar15 Jun 20251.20.10.4 MB389.5k downloads9eb0fa86488a…Get
  • SkyblockBuilder-21.1.16.jar15 Jun 20251.21.10.5 MB5c1d2790995f…Get
  • SkyblockBuilder-21.1.15.jar6 Jun 20251.21.10.5 MBb4d5079c7ba7…Get

Frequently asked

Does Skyblock Builder work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Skyblock Builder declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Which Minecraft versions does Skyblock Builder support?

Everything the author has declared, from 1.16.4 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.

Which loader does Skyblock Builder need?

NeoForge, Forge. A build for one loader will not load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for Skyblock Builder?

On the newest Minecraft release it supports, Java 21 or newer. The requirement comes from the Minecraft version you run rather than from the mod itself, so on an older supported Minecraft the answer is that version's Java, not this one.

How do I install Skyblock Builder?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.

Where do I download Skyblock Builder safely?

From the author's own page on CurseForge, which is where the data here is synced from. MCReference never mirrors, re-hosts or repackages a file: every download button points at the original source, so you get exactly what the author published.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

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Last checked 1 mo ago against CurseForge. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

Is this information wrong or missing something? .