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Structure Generation Improver (SGI: Foundations!)Minecraft mod for 1.21.1

Improves world generation by dynamically conforming terrain around structures, creating natural slopes and seamless integration with the surrounding landscape.

server onlynewest supported 1.21.1
Latest version
2.0.0
Loaders
Forge, NeoForge
Licence
LicenseRef-All-Rights-Reserved
Downloads
14.2k
Updated
4 d ago
Available on
Modrinth
Space NodeOur hosting

Host Structure Generation Improver (SGI: Foundations!) servers

One click and Structure Generation Improver (SGI: Foundations!) is installed with the right loader, on hardware built for it.

  • 1.21.1
  • Forge
  • NeoForge
  • One click mod install
  • Loader matched for you
  • Ryzen CPUs
  • NVMe SSD
Deploy a serverFrom €0.90 per GB

Screenshots

Click a screenshot to open it. Screenshots are served from the author’s own host and belong to them.

Minecraft versions

Every version Structure Generation Improver (SGI: Foundations!) declares support for, newest first, with the Java runtime that version needs.

Other mods
MinecraftThroughJavaEvidenceReleased
1.21.1Forge, NeoForge21+declared8 Aug 2024
1.20.1Forge, NeoForge17+declared12 Jun 2023

Download

From Structure Generation Improver (SGI: Foundations!)’s own host. Nothing is re-hosted here.

2.0.0release17 May 2026

structure_generation_improver-2.0.0-neoforge-1.21.1.jar · 43 KB · for 1.21.1

Download latest
7a2f4e41d5ba…
Older versions3
  • 1.0.317 May 20261.20.142 KB5.6k downloadsf73a3a5c829b…Get
  • 1.0.219 Apr 20261.20.154 KB1.4k downloads47c7c8e88d42…Get
  • 1.0.027 Feb 20261.20.153 KB198 downloads44b09a844170…Get

Frequently asked

Does Structure Generation Improver (SGI: Foundations!) work on Minecraft 1.21.1?

Yes. 1.21.1 is the newest Minecraft version Structure Generation Improver (SGI: Foundations!) declares support for, and the claim comes from the author's own release metadata rather than from a compatibility list somebody maintains by hand.

Which Minecraft versions does Structure Generation Improver (SGI: Foundations!) support?

Everything the author has declared, from 1.20.1 up to 1.21.1. The full list is in the table above, with the Java runtime each version needs next to it.

Do I need to install Structure Generation Improver (SGI: Foundations!) on the client or the server?

The server only. Players join with an ordinary Minecraft client and install nothing.

Which platform or loader does Structure Generation Improver (SGI: Foundations!) support?

Forge, NeoForge. A build for one platform or loader will not necessarily load on another, so this is the first thing to check before the Minecraft version.

Which Java version do I need for Structure Generation Improver (SGI: Foundations!)?

On the newest Minecraft version it supports, Java 21 or newer. The requirement comes from the Minecraft version you run rather than from the mod itself, so on an older supported Minecraft the answer is that version's Java, not this one.

What licence is Structure Generation Improver (SGI: Foundations!) under?

LicenseRef-All-Rights-Reserved, as stated by the author on the platform we synced it from. Check the project's own page before redistributing or bundling it.

How do I install Structure Generation Improver (SGI: Foundations!)?

Install the matching loader first, then put the downloaded file in your mods folder and start the game. The loader, the mod and Minecraft all have to be on the same version, which is the usual reason a mod does not appear in game.

Where do I download Structure Generation Improver (SGI: Foundations!) safely?

Start with the author's page on Modrinth, which is where the data here is synced from. MCReference does not host or repackage files. The download link goes to the source recorded for that release; verify the publisher, filename and checksum before running it.

Works on the same versions

Ordered by how much of the recent Minecraft version coverage overlaps, not by popularity.

Details from Modrinth, where the author last updated it on 25 Sept 2026. We do not host files and we do not republish descriptions; every download link points at the author’s own release.

Is this information wrong or missing something? .