ATi Structures

ATi Structures is a Minecraft Java mod that adds 56 handcrafted fantasy and medieval dungeons and structures, generated both above and below ground. Every build uses vanilla blocks only, so it drops safely into any modpack, and it loads through Fabric, Forge, NeoForge, or Quilt on Minecraft versions up to 26.2. The mod runs on the server; players joining don't need it installed client-side.

What ATi Structures adds

The pack currently ships 56 structures: temples, keeps, ruined outposts, dungeons, and settlements themed from desert forts to wither-infested cathedrals, each with its own loot table. The most recent 1.4.x updates added 7 new structures, reworked structure generation to stop buildings floating above the terrain, and rebalanced how structures are distributed so world spawn isn't crowded with them.

Installing ATi Structures on Fabric, Forge, NeoForge, or Quilt

1. 1.Install the mod loader that matches your Minecraft version: Fabric, Forge, NeoForge, or Quilt.
2. 2.Download the ATi Structures jar built for that loader from the official Modrinth project page.
3. 3.Drop the jar into your mods folder, then launch the game or start the server.
4. 4.New structures only appear in chunks the world generates after installing the mod; existing explored terrain stays as it was.

A vanilla data pack, no mod loader required

Every ATi Structures release also ships a plain data pack build. Modrinth lists a zip file alongside each loader jar, tagged for the vanilla data pack format instead of Fabric or Forge. Drop that file into a world's or a server's datapacks folder and the structures generate with no mod loader installed at all, though the data pack build can trail the mod jar by a patch version; the current data pack sits at 1.4.5 against the mod's 1.4.6.

Want a build that never adds anything beyond vanilla items and mobs, whether you run the jar or the data pack? The same creator maintains ATi Structures - Vanilla Edition as a separate Modrinth project with the same 56 structures, but every file on it keeps loot and mob spawns strictly vanilla. This build's mod-loader jar, by contrast, adds some custom items and modified mob spawns on top of the vanilla structures.

Compatibility with Terralith and other worldgen mods

ATi Structures is built to slot alongside existing terrain generation rather than replace it. The creator lists it as fully compatible with Terralith, Geophilic, JJ Thunder to the Max, Biomes O' Plenty, Oh The Biomes We've Gone, and both of William Wythers' terrain datapacks, Overhauled Overworld and Expanded Ecosphere.

For a mod that retextures vanilla structures to fit other biomes instead of adding new ones, see Repurposed Structures. For denser, more combat-focused dungeon packs covering similar ground with different structure counts and themes, When Dungeons Arise and YUNG's Better Dungeons are the closest points of comparison.

ATi Structures showcase

Watch on YouTube