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Deep Aether – Aether Expansion with New Biomes Ores and Mobs V1.5.4

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Creator: TunefulTurnip

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Last checked: 2026-07-29
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Features:

  • Add-on that expands The Aether dimension while keeping its original style
  • Five new biomes: Aerglow Forest, Blue Aerglow Forest, Aerlavender Fields, Yagroot Swamp and Golden Heights
  • Skyjade found in Holystone, with blocks, armor, tools and weapons whose ability is strongest on the first use and weakens as durability is lost
  • Stratus from Sterling Aerclouds above Y = 200, giving slow falling and a dash with the full set
  • Six new trees and wood sets: Roseroot, Blue Roseroot, Yagroot, Cruderoot, Conberry and Sunroot
  • New mobs: Aerglow Fish and the Aether Quail with multiple color variants
  • New stone types Clorite and Aseterite plus Aether Mud and Aether Mud Bricks
  • Virulent Quicksand, Aersmog clouds and a placeable Poison liquid
  • Spooky Ring dungeon loot increases damage dealt at night, plus two music discs
  • Cross-compatibility with Aether Lost Content and Aether Redux
  • Requires The Aether and Aeroblender on NeoForge for Minecraft 1.21.1
  • Made by TunefulTurnip

Deep Aether is an add-on for The Aether that gives the floating dimension the kind of treatment the Nether received in 1.16: more places to explore, more materials to chase and more reasons to stay up there. Five biomes join the dimension, from the Aerglow Forest and its blue variant to the Aerlavender Fields, the Yagroot Swamp and the Golden Heights, each with its own flora and new wood and ground blocks alongside them.

Progression is built around two new materials. Skyjade is dug out of Holystone and works as a mirror of Zanite: its ability is powerful on the first use and grows weaker as durability drains away. Stratus comes from Sterling Aerclouds that generate high in the Aether above Y = 200, which can be enchanted into Chromatic Aerclouds and crafted into ingots; a full Stratus set upgrades the classic high jump into slow falling and adds a dash ability.

The world around that gear is filled in with new life and new building material. Aerglow Fish and Aether Quails with several color variants join the dimension’s wildlife, while Clorite, Aseterite, Aether Mud, Aerglow Blocks and fresh Holystone variants widen the palette for builders. Poison can now be placed as a liquid and spawns naturally in the Yagroot Swamp, Aersmog clouds inflict Inebration when stepped on, Virulent Quicksand suffocates anyone who falls through it, and dungeon loot can yield the Spooky Ring, which increases damage dealt during the night.

✅ Description reviewed by the CrashMods Team

Changelog

V1.5.4 — First release.
Frequently asked questions6 questions

Deep Aether – which game and version is it for?

This mod was made for Minecraft (game version: 1.21.1). The mod's own version: V1.5.4. After a major game update, older mods may stop working — check the version before installing.

Deep Aether – how do I install it?

Install the mod loader that matches the mod's Minecraft version (Forge or Fabric), then put the .jar file in the .minecraft/mods folder.

Is the download safe?

We checked the file with VirusTotal: none of the 63 antivirus engines flagged it. The full report opens from the "Verified" badge on the mod's page.

How big is the download?

The mod's file size is about 44.1 MB.

Deep Aether – who made it?

The mod's original creator: TunefulTurnip.

Is the mod free?

Yes, downloading from CrashMods is free; registration is not required.

Download Get the latest version of this mod and enjoy!

Mod version: V1.5.4 Minecraft 1.21.1 2 months ago 44.1 MB
Deep Aether – Aether Expansion with New Biomes Ores and Mobs V1.5.4 44.1 MB Minecraft Download File

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