ResourcepacksJava
Custom Sky Pack Resource Pack (26.3, 1.21.11) – Vibrant Cosmic Skies
Java resource pack listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.
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Custom Sky Pack Resource Pack replaces vanilla skies with detailed skybox textures across the Overworld, the Nether, and the End. This pack gives worlds a fresh look both day and night while you travel across different dimensions. It works through OptiFine sky formatting and runs on Fabric when paired with Skyboxify.
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Features:
- Adds high-resolution skies for daytime and nighttime in the Overworld.
- Includes a purple cosmic sky visual for the End dimension.
- Adds a Nether sky viewable when standing above the bedrock roof in Fabric setups.
- Uses OptiFine format skyboxes to adjust atmospheric visuals.
- Includes 11 custom environment textures to update the world horizon.
- Changes the overall look of the skybox without changing block textures.
Dimension Details:
- Overworld: Shows clear daytime skies and star-filled night views.
- The End: Displays a custom sky that may briefly reset during the Ender Dragon fight.
- The Nether: Shows a custom skybox above the roof when running Fabric with Skyboxify.
Screenshots:




Custom Sky Pack Resource Pack Download Links
Quick facts
- Edition: Minecraft Java
- File type: .zip (resource pack)
- Minecraft version listed: 1.21.11
- How to install: Download the .zip resource pack — do not unzip it. → Put it in .minecraft/resourcepacks. → Enable it in Options → Resource Packs.
- Where to get it: In MC Java Mods, or directly above on this page.
Install steps are the general flow for this file type — How to install Minecraft Java resource packs walks through it step by step.
File checked by MCModsHub
- Downloads as 522696.mcpack
- Download size: 17.9 MB
- Download link checked 7 Oct 2026 — working
- Mirrored on our own servers — the download does not depend on the original host
These come from our own check of the pack file, not from the source page.