Key takeaways
- ATi Structures adds 56 handcrafted fantasy and medieval structures that generate both above and below ground.
- The current release added Terralith compatibility, fixed floating structures, rebalanced loot and improved distribution around world spawn.
- This version includes custom items and modified mobs, which separates it from the Vanilla Edition that uses vanilla features only.
Most structure mods generate from templates with randomised variation. You find a building, then you find a slightly different version of that building, then a third, and the pattern becomes visible within a few hours. It is the standard trade for having a lot of content.
ATi Structures goes the other way – 56 structures, each individually built, with no procedural variation. You either find a specific building or you do not, and when you do it is the only one of its kind. With over 1.7 million downloads and support through 26.3, it is the largest handcrafted structure set in the ecosystem.
What this mod does
It adds 56 fantasy and medieval structures to world generation, above ground and below. The style is coherent across the set – towers, ruins, keeps, camps and underground complexes drawn from the same visual vocabulary rather than assembled from unrelated themes.
Two editions exist and the difference matters:
- The main version, reviewed here, includes custom items and modified mobs alongside the buildings.
- The Vanilla Edition, a separate project, uses vanilla features only – no custom blocks or entities.
Pick based on whether you want the structures to be a content layer or a scenery layer. A server that wants new buildings without new items should use the Vanilla Edition. A pack that wants the full experience should use this one.
The project explicitly permits modpack inclusion, which removes the licensing question that stops a lot of structure sets from being bundled.
Key features
56 handcrafted structures. Every one individually built. The practical consequence is that finding a structure is an event rather than a category – you have not seen this one before because there is only one of it.
Above and below ground. Underground structures are the underused half of worldgen. Most structure mods put everything on the surface, where it competes for space with villages and outposts. Underground placement gives the mod somewhere uncontested to generate.
No more floaters. The current release made major changes to structure generation specifically to stop buildings generating partially in mid-air. This is the single most common complaint about any structure mod and fixing it properly is harder than it sounds – it means checking terrain fit rather than just placing at a height.
Terralith compatibility. Added in the current release along with support for other terrain mods. Terralith reshapes terrain substantially, and a structure mod that does not account for that produces exactly the floating buildings the previous point is about. Our Terralith and Tectonic breakdown covers what those mods do to the ground.
Rebalanced loot and improved distribution. Distribution was improved specifically around world spawn, which addresses the other common structure mod problem – either nothing near spawn or everything near spawn.
Compatibility
- Fabric, Forge, NeoForge, Quilt and datapack are all listed, which is unusually broad.
- Versions run through 26.3, current at the time of writing.
- This version adds custom items and modified mobs, so both client and server need it. The Vanilla Edition does not have that constraint.
- Terrain mod support is explicitly included in the current release, which was not true of earlier ones.
Running it alongside another structure mod is possible but worth thinking about. 56 structures is a lot, and adding another set on top produces a world where you cannot walk five hundred blocks without finding a building. Our Sparse Structures review covers the global density control that fixes that, and our structure mod roundup covers which combinations hold up.
The usual worldgen rule applies – structures only generate in chunks created after installation. Our guide to adding worldgen mods to an existing world covers the options.
How to install
- Pick the edition you want – the main version for custom content, the Vanilla Edition for structures only.
- Install your loader and its API.
- Put the jar in the mods folder. For the main version, client and server both.
- Generate a new world, or accept that structures appear only at the edge of explored terrain.
Our mod installation guide covers the basics, and our backup routine guide covers the step before any worldgen change on a server.
How it compares
Against procedural structure mods. Procedural sets give you more total buildings with less individual character. ATi gives you fewer with more. For a world you will play for a hundred hours, handcrafted wins, because the procedural pattern becomes visible and the handcrafted one does not.
Against dungeon-focused sets. Our Dungeons and Taverns review covers a set built around interiors and encounters. ATi is broader and less combat-focused – more of its structures are places rather than challenges.
Against vanilla-variant mods. Our Repurposed Structures review covers the opposite philosophy – biome variants of buildings you already know, server-side only. The two pair well, because one fills in vanilla’s gaps and the other adds things vanilla never had.
Is it worth installing
Yes for an exploration-focused world, and the Terralith compatibility in the current release is what makes that a confident recommendation rather than a conditional one. A structure mod that does not work with the most popular terrain mod is a structure mod with half an audience.
The question to settle first is which edition. The main version’s custom items and modified mobs make it a content mod, which means a client requirement and a harder removal path. The Vanilla Edition is a scenery mod, which is lighter in every sense. For most servers the Vanilla Edition is the right answer; for a single-player exploration world, the main version gives you more to find.
Skip it entirely if your complaint about Minecraft is combat or progression rather than emptiness. 56 buildings do not change what you do in the game, they change how often you stop while travelling. Our structures worth exploring guide covers what vanilla already offers, which is more than most players use.
Images: ATi Structures project gallery.