ModsFinder

HB's Structures over Time

by holy_buckets

HB's Structures over Time changes modded structures as a world ages, so late-game structures stay hidden until a player is ready for them.

FabricForgeNeoForgeClient and serverMIT LicenseOpen source1.20.1 – 1.21.1

What it does

Structures in this mod can upgrade into other modded structures over the course of a game. Upgrades are triggered by items or by dimension-based conditions, and a JSON config file sets which structures change and what they change into. Some structures are limited to special conditions, such as night, and late-game structures do not generate until a player reaches the point the config describes, which keeps a new world from feeling cluttered early on.

The mod supports dimensions beyond the Overworld. Upgrade chains can be cyclic, so a final stage reverts to the first, or unique, so a structure changes only once per world and becomes a landmark. Example configurations are available on the GitHub repository, and the source code is open source under the MIT License.

The mod is published for Fabric, Forge and NeoForge across seven release versions, 1.20.1 – 1.21.1, and requires Balm and HB's Foundation. The server and every player need the mod installed.

Key features

  1. Structure upgrades

    Modded structures can grow into other modded structures as the game progresses.

  2. Item and dimension triggers

    Upgrades fire when a player holds an item or when a dimension-based condition is met.

  3. Timed late-game structures

    Late-game structures are withheld until the player reaches the stage the config sets for them.

  4. Cyclic and unique upgrades

    Chains can loop back to the first stage, or apply once per world to create a unique landmark.

  5. JSON configuration

    A JSON file controls which structures upgrade, the conditions they use, and the dimensions they apply to.

Compatibility

Latest build for each game version and loader.

1.21.11.2.0Not available1.2.0
1.20.6Not available1.1.0Not available
1.20.5Not available1.1.0Not available
1.20.4Not available1.1.0Not available
1.20.3Not available1.1.0Not available
1.20.2Not available1.1.0Not available
1.20.11.1.01.1.0Not available
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Requirements

Dependencies declared by the latest file for each loader.

Required 2

BalmAbstraction Layer for Multi-Loader Mods
Required
HB's FoundationHBs Foundation is an API for fundamental methods and utility methods related to all my Minecraft modded projects. Integrated with and dependent on Balm API. Not intended to add end user features to the game on its own.
Required

Use cases

Who it’s for: Server owners and modpack authors who want world generation to change over time rather than remain fixed from the first day.

Questions

Does Structures over Time need Balm?

Yes. Balm is a required dependency, and HB's Foundation is required as well. Both must be installed alongside this mod.

Must the server run the mod?

Yes. A server running it needs every connecting player to have it too.

Which loader should be used?

The mod is published for Fabric, Forge and NeoForge. Files exist for 1.21.1 on Fabric and NeoForge, and for 1.20.6 on Forge.

In the catalog

HB's Structures over Time is one of 8,515 World generation mods on ModsFinder, and one of 4,027 World generation mods for Fabric. 32,366 mods support Minecraft 1.21.1.

World generation mods8,515Fabric modsMods for 1.21.132,366

More from holy_buckets

All projects
HB's Foundation1.20.1 – 26.1.2HB's Ore Clusters and Regen1.20.1 – 1.21.1Hbs Satellites1.20.1 – 1.21.1HB's Satellites Compatability Mod1.20.1 – 1.21.1Find My Blimp1.21.1HB's True Rewards for Travelers1.20.1

Similar mods

Biomes O' Plenty1.7.10 – 26.3Cobblemon1.19.2 – 1.21.1Terralith1.18.2 – 26.3YUNG's Better Nether Fortresses1.18.2 – 26.1.2Dungeons and Taverns1.19 – 26.3Yeetus Experimentus1.18.2 – 26.3

What the author says

> ### ALPHA RELEASE — Known Issues > > - Structure upgrades may take a few minutes to process — check the logs if something seems stuck > - Structures do not yet clean up their associated entities when upgrading > - If structures are not upgrading, try increasing your render distance > - Use /hbStructures getDetails…
holy_buckets, on the Modrinth page

Official listing

Owner
holy_buckets
Published
2026-06-02
Updated on Modrinth
2026-08-25
Facts verified
2026-10-15

Tags

AdventureGame mechanicsWorld generationDecoration
Open on ModrinthCompare