The Aether is a Minecraft Java mod that adds a bright, heavenly sky dimension as a counterpart to the Nether. It is the modern continuation of the original Aether mod, runs on Fabric, Forge, and NeoForge, and is required on both client and server. You reach it by building a Glowstone portal in the shape of a Nether portal and activating it with a bucket of water, then explore floating islands filled with new mobs, materials, dungeons, and bosses.
What The Aether adds in-game
The dimension generates as a chain of grassy islands above an open void, with Skyroot trees, Holystone, and floating Aercloud platforms used for soft landings. Exploration is built around three progression dungeons, each guarded by a boss and holding unique loot and gear.
- A floating-island sky dimension with its own biomes, blocks, and ambient mobs.
- The Bronze Dungeon, home of the Slider boss.
- The Silver Dungeon, ruled by the Valkyrie Queen.
- The Gold Dungeon, where the Sun Spirit waits.
- New tools, armor, and accessories, including items that change how you move and fall.
How to install The Aether
- 1.Install your mod loader of choice: Fabric, Forge, or NeoForge for a supported Minecraft version.
- 2.Download The Aether for your loader and Minecraft version from the Modrinth project page.
- 3.Download the required oωo (owo-lib) library for the same loader and version.
- 4.Place both files in your .minecraft/mods folder (or the server's mods folder).
- 5.Launch Minecraft with the matching loader profile and open a world to start playing.
Supported loaders and Minecraft versions
- Loaders: Fabric, Forge, and NeoForge.
- Modern Minecraft releases include 1.20.1, 1.20.4, and 1.21.1, with earlier builds for 1.19.2 and 1.12.2.
- Required on both the client and the server; every player and the host must run the same version.
- Works in multiplayer when the server and all clients share the same Aether and loader build.
The Aether 1.21.1 mod review
Questions about this entry.
How do I install The Aether?
Install Fabric, Forge, or NeoForge for your Minecraft version, then download The Aether and the required owo-lib for that same loader and version. Drop both jar files into your mods folder, launch the matching loader profile, and the dimension is ready. On a server, place both files in the server's mods folder so every client and the host run identical builds.
Does The Aether work with Fabric, Forge, and NeoForge?
Yes. The Aether ships builds for Fabric, Forge, and NeoForge, so you can pick whichever loader matches the rest of your modpack. Make sure The Aether, owo-lib, and any other mods all target the same loader and the same Minecraft version, since mixing loaders or versions will prevent the game from loading.
Which Minecraft version does The Aether support?
Modern releases cover Minecraft 1.20.1, 1.20.4, and 1.21.1, with earlier supported builds for 1.19.2 and the classic 1.12.2. Download the file that lists your exact version, because each build is tied to a specific Minecraft release and loader.
How do you get to the Aether dimension?
Build a portal frame in the same shape as a Nether portal but using Glowstone blocks instead of obsidian, then activate it with a bucket of water rather than flint and steel. Stepping through carries you up to the floating islands of the Aether, where you can start exploring its dungeons and bosses.
Does The Aether work on multiplayer servers?
Yes. The mod is required on both the client and the server and is designed to run in multiplayer. Install the same Aether and loader build on the server and on every player's client. Mismatched versions between the host and a client will stop that player from connecting.