Structure Configurator
by alchemyyy
Structure Configurator gives server owners control over how far the game searches for structures and how randomly placed structures are spaced, for NeoForge 1.21.1.
What it does
Search spacing and separation settings are exposed in config files, so a server can tune the distance between structures placed on the random-spread grid. Structure search radii used by worldgen maps and the locate command can be adjusted as well, which changes how far a player's search reaches before it gives up.
The mod runs only on the server, so players join without installing anything. It keeps the structureconfigurator mod id, so setups that referenced that id continue to load. Structure diagnostics commands report how the structure settings resolve on the running server. Source code and an issue tracker are public. The project is open source under the MIT License, and the 1.0.0 NeoForge file for 1.21.1 was published on 2026-06-03.
Key features
Search spacing safety
Configuration options guard the spacing values used when structures are searched for, so a bad value does not break placement.
Search radius settings
Radii used by worldgen maps and the locate command can be set separately, changing how far a search reaches.
Random-spread separation
Spacing and separation values for random-spread structures can be changed to control how densely they generate.
Structure diagnostics commands
Commands report the structure settings in effect on the server, which helps when checking a configuration.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Who it’s for: Server owners and operators running NeoForge 1.21.1 who want to adjust structure generation and search behavior. Single-player players do not need the mod installed on their client.
How it compares
Astruct is server-side only, open source under the MIT License, and published for NeoForge 1.21.1 like this mod. More Structure Control is client and server, open source under the MIT License, and covers Forge and NeoForge for 1.20.1 – 1.21.1, so every player must install it. Locate Fixer is client and server, supports Fabric, Forge and NeoForge for 1.20.1 – 1.21.1, and is not open source; it is released as All rights reserved.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Structure Configurator | NeoForge | 1.21.1 | Server-side only | 2026-06-03 |
| Astruct | NeoForge | 1.21.1 | Server-side only | 2026-01-11 |
| More Structure Control | Forge and NeoForge | 1.20.1 – 1.21.1 | Client and server | 2026-05-28 |
| Locate Fixer | Fabric, Forge and NeoForge | 1.20.1 – 1.21.1 | Client and server | 2026-10-12 |
Questions
Does Structure Configurator need to be installed on the client?
Which loader and version does Structure Configurator support?
Will existing configurations that used the old mod id still work?
In the catalog
Structure Configurator is one of 3,545 Optimization mods on ModsFinder, and one of 1,250 Optimization mods for NeoForge. 32,366 mods support Minecraft 1.21.1.
More from alchemyyy
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What the author says
Adds structure search, spacing, and safety configs to control where structures can be placed, their spacing from each other, and protects the server against crashing from jigsaw errors and random-source errors.
Official listing
- Modrinth page
- modrinth.com/mod/structure-configurator
- Owner
- alchemyyy
- Published
- 2026-06-03
- Updated on Modrinth
- 2026-06-03
- Facts verified
- 2026-10-15