Just Another Structure Pack

Just Another Structure Pack

Adds new structures throughout the Overworld.

by
72.1K Downloads
datapackfabricforgeneoforgequiltadventureworldgen
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Screenshots

Illager Ship
Catacombs Entrance
Ruined Church
Forest Tower
Desert Ruin
Rustic Church

About this Mod

Just Another Structure Pack is a structure data pack that adds new structures to the Overworld. The various structures are designed to seamlessly integrate into vanilla gameplay and add variation and reward to exploration.

From small ruins to long lost labyrinths, Just Another Structure Pack offers a variety of structures for your worlds.

Structures include:

Catacombs:


These ominous structures spawn rarely in Taigas. The consist of a long entrance shaft and then a maze of twisting pathways. Contains lots of skeletons.

Bastion Outpost:


This mysterious underground structure contains many Illagers including Illusioners.

Friendly Outpost:


Rare structures that contains villagers and early game loot. Spawn in most biomes.

Illager Ship:


Find illagers aboard a ship in most ocean biomes.

Tower:


Towers generate uncommonly in the world and act as waypoints. Contains loot with helpful exploration resources, and always contain a compass and lodestone.

Rustic Church:


Small, ambient structure that spawns in forest biomes. Has a chance to spawn as a ruined variant.

Overgrown Library:

Small structure that spawns in Lush Caves. A good source of enchanted books and bookshelves.

Ambients

Small ruins found in deserts and forests, with more biomes planned for the future

Available Versions

Just Another Structure Pack 2.5release
MC 26.2fabric, forge, neoforge, quilt
July 21, 2026
Just Another Structure Pack 2.5release
MC 26.2datapack
July 21, 2026
Just Another Structure Pack 2.4release
MC 1.21.9, 1.21.10fabric, forge, neoforge, quilt
October 1, 2025
Just Another Structure Pack 2.4release
MC 1.21.9, 1.21.10datapack
October 1, 2025
Just Another Structure Pack v2.3release
MC 1.21.6fabric, forge, neoforge, quilt
June 26, 2025

How to Install Just Another Structure Pack on Your Server

1

Order Server

Order a Minecraft Java server with at least 4 GB RAM (6 GB recommended).

2

Set datapack Loader

In the panel under "Egg", select the datapack loader and matching Minecraft version (26.2).

3

Install Mod

Open the mod browser in the dashboard and search for "Just Another Structure Pack". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

datapackfabricforgeneoforgequilt

Minecraft Versions

26.2, 1.21.10, 1.21.9 (+12 more)

Server-side

Required

Recommended RAM

6 GB(min. 4 GB)

Frequently Asked Questions

Just Another Structure Pack server crashes on startup – what to do?

Most common cause: wrong datapack version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 4 GB RAM is allocated and the loader matches the mod version (26.2). You can switch loaders with one click in the panel.

Is Just Another Structure Pack compatible with datapack and fabric and forge and neoforge and quilt?

Just Another Structure Pack officially supports datapack, fabric, forge, neoforge, quilt for Minecraft 26.2, 1.21.10, 1.21.9. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with Just Another Structure Pack – how to optimize performance?

Recommended RAM: 6 GB (per 5 players). Use /spark profiler to check if Just Another Structure Pack consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.

Rent Modded Server

Install Just Another Structure Pack with just one click on your server.

Recommended RAM
6 GBfrom €7.800000000000001/mo
Minimum 4 GB | per 5 players
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NVMe SSD Storage
DDoS Protection included

Details

License
LicenseRef-All-Rights-Reserved
Server-side
Required

Supported Versions

26.21.21.101.21.91.21.61.21.51.211.20.51.20.41.20.11.20+5 more