How do I install Ad Astra: Planets+ Add-ons?

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. Opens on Modrinth — not every file is mirrored on our own servers.

What Minecraft version does Ad Astra: Planets+ Add-ons work with?

The listing gives Minecraft 1.20.1, 1.20.4. This is the version stated by the author or source site, not something we verified ourselves.

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Ad Astra: Planets+ Add-ons

by AveryHazel · on Modrinth

Which build do you need?

This mod ships a separate file for every mod loader and every version of the game. Pick both, then download — the wrong build installs fine and then does nothing in the game.

Mod loader

Mod loader Data pack1 build
Mod loader Forge1 build

Minecraft version

Minecraft 1.20.1–1.20.4Newest

Minecraft 1.20.1Newest

⬇ Download for 1.20.1–1.20.4 · Data pack ⬇ Download for 1.20.1 · Forge

I don't know my version or loader

Open the Minecraft launcher and look at the profile you play on — it names both, like fabric-loader-1.21.4. The version also shows in the bottom-right corner of the game's main menu.

No loader in the profile name? Then it's plain Minecraft, and these mods won't run — you need Fabric or NeoForge installed first.

Open in MC Java Mods Get it on Google Play →

Planets+ Add-ons

This is a hub for our datapack, Planets+, which is developed by DeadbushCarrot.

Ceres Add-on

The Ceres Add-on is meant for older players who had stuff on the dwarf planet. This is to prevent progress loss and allow people to migrate their resources elsewhere.

Mimas Add-on

The Mimas add-on serves the same purpose as the Ceres add-on.

Thermal Series Compat

This adds all of the Thermal Series ores to all celestial bodies in Planets+.

Thermal Series compat requires the following:

Thermal and Space
Thermal Series (Duh)

Mekanism Compat

The Mekanism compat adds all of the Mekanism ores to all the celestial bodies, similarly to the Thermal Series compat.

Mekanism compat requires the following:

Mekanism: Ad Astra Ores
Mekanism (Duh)

Thermal series and Mekanism Compat

This blends the Thermal and Mekanism compats together to prevent bugs between the two.

Thermal and Mekanism compat requires

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft versions listed: 1.20.1, 1.20.4
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 — see the MC Java Mods guides for the full walkthrough.

Verified by MCModsHub

Downloads as Planets+.Ceres.add-on.zip
Download size: 11 KB
Download link checked 28 Aug 2026 — working

These come from our own check of the pack file, not from the source page.

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