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Ad Astra: More StructuresMinecraft mod for 1.21.1

Add lots of structures, dungeons and bosses in the Ad Astra planets.

client and servernewest supported release 1.21.1AdventureWorldgen
Latest version
1.0.2
Minecraft
1.18.2 to 1.21.1
Java
Java 21+
Loaders
NeoForge, Forge, Fabric
Licence
LicenseRef-All-Rights-Reserved
Downloads
49.9k
Updated
2 mo ago
Available on
Modrinth
Space NodeOur hosting

Host Ad Astra: More Structures servers

One click and Ad Astra: More Structures is installed with the right loader, on hardware built for it.

  • 1.21.1
  • NeoForge
  • Forge
  • Fabric
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

Every version Ad Astra: More Structures declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1NeoForge, Forge, Fabric21+declared8 Aug 2024
1.21Fabric, NeoForge, Forge21+declared13 Jun 2024
1.20.6Forge, NeoForge, Fabric21+declared29 Apr 2024
1.20.5Forge, NeoForge, Fabric21+declared23 Apr 2024
1.20.4Fabric, Forge, NeoForge17+declared7 Dec 2023
1.20.3NeoForge, Forge, Fabric17+declared4 Dec 2023
1.20.2Fabric, NeoForge, Forge17+declared20 Sept 2023
1.20.1NeoForge, Forge, Fabric17+declared12 Jun 2023
1.19.2NeoForge, Forge, Fabric17+declared5 Aug 2022
1.18.2NeoForge, Fabric, Forge17+declared28 Feb 2022

Download

From Ad Astra: More Structures’s own host. Nothing is re-hosted here.

Most recently published release

1.0.2release15 Sept 2026

ad_astra_more_structures-1.21.1-neoforge.jar · 0.6 MB · for 1.21.1, 1.21 · NeoForge

Download this release
c96b191c95f6…
Older versions2
  • 1.0.111 Jun 20261.18.20.6 MB3.8k downloads8715f47c9a27…Get
  • 1.0.024 Jul 20251.20.6, 1.20.5, 1.20.4, 1.20.3, 1.20.2 +1 more0.5 MB36.8k downloadsea8a8149e9f6…Get

Dependencies

What Ad Astra: More Structuresdeclares it needs, from the author’s own release metadata. A required one has to be installed alongside it or it will not load.

Ad AstraRequired. Live long and prosper, Ad Astra!

Frequently asked

Does Ad Astra: More Structures work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Ad Astra: More Structures declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Which Minecraft versions does Ad Astra: More Structures support?

Everything the author has declared, from 1.18.2 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Ad Astra: More Structures on the client or the server?

Both. Every player needs it installed and so does the server, so anyone joining without it will be refused.

Which platform or loader does Ad Astra: More Structures support?

NeoForge, Forge, Fabric. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for Ad Astra: More Structures?

Among the supported Minecraft releases above, the highest recorded requirement is Java 21 or newer. Use the requirement for the exact Minecraft version you run; previews and snapshots may differ.

What does Ad Astra: More Structures need to run?

It declares Ad Astra as required, so that has to be installed alongside it or it will not load. Each one is linked in the dependencies section above.

What licence is Ad Astra: More Structures under?

LicenseRef-All-Rights-Reserved, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.

How do I install Ad Astra: More Structures?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.

Where do I download Ad Astra: More Structures safely?

Start with the author's page on Modrinth, which is where the data here is synced from. MCReference does not host or repackage files. When available, recorded download links go to the source for that release; verify the publisher, filename and any available checksum before running it.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

GeckoLibA 3D animation library for entities, blocks, items, armor, and more!BookshelfAn open source library for other mods!Cloth Config API (Fabric/Forge/NeoForge)Config Screen API for MinecraftJourneyMapReal-time map used for mapping in-game or your browser as you explore.Architectury APIAn intermediary api aimed to ease developing multiplatform mods.Jade 🔍Shows information about what you are looking at. (Hwyla/WAILA fork for Minecraft 1.16+)

Details from Modrinth, where the author last updated it on 15 Sept 2026. We do not host files or republish descriptions. Available download links point to the author’s own release.

Is this information wrong or missing something? .