ModsJava
Antique Atlas 4 Sky Islands Compat
Java mod listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.
⬇ Download on Modrinth
AA4 Sky Islands
A client-side NeoForge addon that makes Antique Atlas 4 usable on sky-island worlds.
Features
- Sparse clouds in explored empty space between islands
- Island edges stay visible instead of becoming blank squares
- Floating islands use ground-level biome art instead of peak/hill tiles
- Only runs in dimensions whose sea level is below 32
Requirements
This is a client-only NeoForge 1.21.1 mod. You also need:
- Antique Atlas 4 3.1.2+
- Surveyor Map Framework 1.2+
- Sinytra Connector and Forgified Fabric API (AA4 is a Fabric mod on NeoForge)
Credits
Antique Atlas 4 is by Sisby folk, building on Hunternif, Kenkron, asie, and tyra314. This addon does not copy AA4's tile art.
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 1.21.1
- 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 Modrinth — 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.
File checked by MCModsHub
- Ships as aa4_sky_islands-1.0.12+1.21.1-neoforge.jar — drop this file into the mods folder
- Download size: 46 KB
- Download link checked 9 Nov 2026 — working
These come from our own check of the pack file, not from the source page.