data pack

Aio's Extra Structures!Minecraft data pack for 1.21.1

A datapack that adds more structures to cobblemon!

server onlynewest supported release 1.21.1Adventure Decoration Worldgen

Latest version: 4.9.3
Minecraft: 1.21 to 1.21.1
Works with: Fabric, NeoForge
Licence: CC-BY-4.0
Downloads: 32.6k
Updated: 5 d ago
Available on: Modrinth

Our hosting

Host Aio's Extra Structures! servers

Deploy a server with Aio's Extra Structures! already added to the world, on hardware built for it.

1.21.1
Data pack
Fabric
NeoForge

One click install
Version matched
Automatic backups
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 Aio's Extra Structures! declares support for, newest first, with the Java runtime that version needs.

Other data packs

Minecraft	Through	Java	Evidence	Released
1.21.1	Data pack, Fabric, NeoForge	21+	declared	8 Aug 2024
1.21	Data pack, Fabric, NeoForge	21+	declared	13 Jun 2024

Download

From Aio's Extra Structures!’s own host. Nothing is re-hosted here.

For Minecraft 1.21.1

Choose the loader you use before downloading.

Fabric, NeoForge
4.9.3 · 12 Oct 2026
Multiple loaders are listed; verify the file before downloading.
Choose file on publisher ↗
Loader not listed
4.3.0 · 24 Jan 2026 · AioStructures-4.3.0.zip
Get release

Most recently published release

4.9.3release12 Oct 2026

AioStructures-4.9.3.jar · 0.5 MB · for 1.21.1 · Fabric, NeoForge

Choose file on publisher ↗

bbcdb1ee20bb…

Older versions22

4.9.29 Oct 20261.21.10.6 MB76c8816beeb0…Choose file on publisher ↗
4.9.120 Sept 20261.21.10.6 MBcbef0142b39d…Choose file on publisher ↗
4.9.07 Sept 20261.21.10.6 MB9c8c2e8e54d6…Choose file on publisher ↗
4.8.1.231 Aug 20261.21.10.4 MB384a23fc8611…Choose file on publisher ↗
4.8.1.113 Aug 20261.21.10.4 MBb388a879bacc…Choose file on publisher ↗
4.8.130 Jun 20261.21.10.4 MB100 downloadsf3ae20793821…Choose file on publisher ↗
4.8.028 Apr 20261.21.10.4 MB168 downloads3765c9bb2436…Choose file on publisher ↗
4.7.011 Mar 20261.21.10.4 MB581 downloadsfbecb124888a…Choose file on publisher ↗
4.6.016 Feb 20261.21.10.3 MB149 downloadsed8309b81131…Choose file on publisher ↗
4.5.02 Feb 20261.21.10.2 MB136 downloads768924c9dc74…Choose file on publisher ↗
4.4.025 Jan 20261.21.10.2 MB188 downloadsee5e294e06b4…Choose file on publisher ↗
4.3.024 Jan 20261.21.1, 1.210.1 MB105 downloads832ab375eae6…Get
4.2.014 Jan 20261.21.1, 1.21101 KB798 downloads39541bc1fc3d…Get
4.1.124 Nov 20251.21.176 KB1.6k downloads0ba731f4d628…Get
4.1.022 May 20251.21.176 KB9.4k downloads9f9398068ac4…Get
4.0.020 May 20251.21.168 KB155 downloads115621b7c01c…Get
3.1.115 May 20251.21.145 KB841 downloadse210d42ee8de…Get
3.1.010 May 20251.21.145 KB466 downloads34abd281713f…Get
3.0.030 Mar 20251.21.144 KB1.4k downloadsfea00fa63ca8…Get
2.1.020 Mar 20251.21.128 KB273 downloads54fab9994d38…Get
1.1.018 Mar 20251.21.120 KB24 downloads37e3762b21dd…Get
1.0.018 Mar 20251.21.120 KB28 downloads3a4ee7de873c…Get

Dependencies

What Aio's Extra Structures!declares it needs, from the author’s own release metadata. A required one has to be installed alongside it or it will not load.

CobblemonRequired. A Pokémon mod for Fabric and NeoForge Cobblemon: Mega ShowdownRequired. Adds Mega Evolution, Z-Moves, Teralization, Dyna/Gigantamax, Ultra Burst & Fusions to Cobblemon!

Frequently asked

Does Aio's Extra Structures! work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Aio's Extra 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 Aio's Extra Structures! support?

Everything the author has declared, from 1.21 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 Aio's Extra Structures! on the client or the server?

The server only. Players join with an ordinary Minecraft client and install nothing.

What does Aio's Extra Structures! need to run?

It declares Cobblemon and Cobblemon: Mega Showdown as required, so those have to be installed alongside it or it will not load. Each one is linked in the dependencies section above.

What licence is Aio's Extra Structures! under?

CC-BY-4.0, 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 Aio's Extra Structures!?

Data packs install per world: put the downloaded file in that world's datapacks folder and run /reload, or add it when creating the world. No loader is involved. On a server, the world folder lives next to the server jar.

Where do I download Aio's Extra 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.

TerralithExplore almost 100 new biomes consisting of both realism and light fantasy, using just Vanilla blocks. Complete with several immersive structures to compliment the overhauled terrain.Towns and TowersSpice up your world with new villages, pillager outposts, and even new ships!TectonicTerrain shaping brought to new heights, grander and more varied than ever before!TrekBored of vanilla structure generation? This pack is for you!GeophilicA subtle-ish overhaul of vanilla Overworld biomes! Reworked!Incendium LegacyA nether biome overhaul combined with challenging structures to conquer, unique weapons to obtain, and tricky mobs to defeat.

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