How do I install Ad Astra: Per Spatium?

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 CurseForge — not every file is mirrored on our own servers.

What Minecraft version does Ad Astra: Per Spatium work with?

The listing gives Minecraft 1.21.1, 1.20.1, 1.20.4, among others. This is the version stated by the author or source site, not something we verified ourselves.

Home›Java›Mods›Ad Astra: Per Spatium

ModsJava

Ad Astra: Per Spatium

Java mod listed for Minecraft 1.19–1.21. Downloads from the MC Java Mods app on Android.

by Roi_Pasteque · on CurseForge

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 NeoForge2 builds
Mod loader Forge2 builds

Minecraft version

Minecraft 1.21.1Newest
Minecraft 1.20.4

Minecraft 1.20.1Newest
Minecraft 1.19.2

⬇ Download for 1.21.1 · NeoForge ⬇ Download for 1.20.4 · NeoForge ⬇ Download for 1.20.1 · Forge ⬇ Download for 1.19.2 · 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 →

An addon for Ad Astra, Stellaris and Galacticraft, adding new structures to improve space exploration.

This mod can be added to Ad astra or Stellaris, when choosing the file check for which mod it is compatible with!

Per Spatium structures

Ruined space center

A small structure found in deserts biome

Radio tower

The Radio Tower next to Ad Astra structures

Stone fortress

The Stone Fortress, a hard dungeon with great loot

Venera

The Venera Lander, a common small structure found on Venus

Mercury fortress

Ice peak

-> Shader is AstraLex by LexBoosT

This mod is discontinued, and will be replaced by my own space mod eventually. All structures will get reworked!

For questions, suggestions or anything : Discord : roi_pasteque

You are welcome to include this mod in your modpack, no need for credit or permission

Quick facts

Edition: Minecraft Java
File type: .jar
Minecraft versions listed: 1.21.1, 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 CurseForge — 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 perspatium-1.20.1-1.2.0.jar — drop this file into the mods folder
Download size: 831 KB
Download link checked 28 Sept 2026 — working

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

Explore more

All Mods for Java All Minecraft Java mods Java mods for 1.21 Java mods for 1.20 Java mods for 1.19