Yes. Castle Shift is free to download from Modrinth. Its license is LGPL-3.0-only.

How do I add it to my Nxeon server?

Use “Add to a server” on this page, or open NxLabs from your dashboard. We install it, restart your server and switch it on.

Castle Shift — Minecraft Mods

About Castle Shift

From Modrinth

Castle Shift introduces procedurally generated castles with diverse layouts, modular room variations, and dynamic architectural themes — creating a different structure each time.

🏰 Castle Shift - Castles in Your World

Discover stone brick castles naturally generated across the landscape!

Castle Shift is a structure mod that adds multi-story castles to Minecraft's world generation. Each castle features randomized structural variations, so no two castles are exactly alike.

✨ Features

🏗️ Multi-Story Castles

4-Floor Structures: Grand castles with walls, towers, and corridors
Natural Placement: Castles generate organically in a wide variety of biomes

🎨 Randomized Materials

Each castle's roofs, walls, and stairs are built from materials randomly selected per castle, so no two castles look the same!

Roofs: Spruce, Dark Oak, Deepslate Bricks, Dark Prismarine, Red Nether Bricks, Crimson
Walls: Stone Bricks, Deepslate Bricks, Polished Blackstone Bricks, Sandstone, End Stone Bricks
Stairs: Bricks, Stone Bricks, Polished Granite, Deepslate Bricks, Polished Blackstone, Polished Blackstone Bricks, Red Nether Bricks

🧱 Structural Variations & Weathering

Multiple Templates: Each floor section (walls, corners, centers, towers) has multiple structure templates chosen at random
Wall Weathering: Stone brick and polished blackstone brick walls may randomly degrade into cobblestone, andesite, or cracked variants for a lived-in look

📦 Datapack-Friendly

Structure placement can be customized via datapacks
Adjust spacing, separation, and biome filters to your liking

🛠️ Technical Details

Multi-Loader & Multi-Version Support

This mod supports multiple Minecraft versions and mod loaders!

1.21.1: Fabric and NeoForge
1.20.1: Fabric and Forge
Download the correct version for your Minecraft version and mod loader
Shared codebase ensures consistent experience across versions and loaders

Requirements

Minecraft 1.21.1

Mod Loader:
Fabric Loader 0.17.3+ with Fabric API 0.116.7+1.21.1, OR
NeoForge 21.1.209+

Minecraft 1.20.1

Mod Loader:
Fabric Loader 0.16.10+ with Fabric API 0.92.2+1.20.1, OR
Forge 47.3.0+

Compatibility

Works with most world generation mods
Compatible with performance mods (Sodium, Starlight, etc.)
Datapack-friendly worldgen configuration

🐛 Bug Reports & Suggestions

Found a bug or have a suggestion? Report it on our GitHub Issues page!

📷 Screenshots

Check out the Gallery above for screenshots showcasing the castles!

🤝 Credits

Built with Architectury Loom

📜 License & Permissions

Source Code: Available on GitHub

Freedom to Use: ✅ Free to use, modify, and redistribute under LGPL-3.0 terms

Modpack Inclusion: ✅ Allowed - You may include this mod in modpacks

Redistribution: ✅ Allowed - You may redistribute this mod (must remain LGPL-3.0)

🔗 Links

GitHub Repository: https://github.com/ksoichiro/CastleShift
CurseForge: [Link to CurseForge page]

Developed for Minecraft Java Edition 1.21.1 / 1.20.1

Explore the castles that await you. 🏰

Highlights

From source data

Game versions

Supports 15 Minecraft versions, the newest being 26.3.

Loaders

Runs on Fabric, Forge and NeoForge.

Footprint

Rated a light load on a server.

Castle Shift on Nxeon

From our catalogue

One-click install: Supported on Nxeon Minecraft servers. We download it from Modrinth, place it, and restart the server.
Server side: Required on the server
Server type needed: Fabric, Forge, NeoForge
Server load: light
Smallest plan we suggest: Minecraft — 2 GB (2 GB RAM). This follows our own load rating above, not a benchmark.
Latest build: 0.3.0, released 2026-09-18

Game versions by loader

Loader	Game versions	Newest
Fabric	26.2 to 26.3 (2 versions)	26.3
NeoForge	26.2 to 26.3 (2 versions)	26.3
Forge	26.2	26.2

From 5 recorded builds of Castle Shift.

Recent builds

Build	Released	Game versions	Loaders
0.3.0	2026-09-18	26.3	NeoForge
0.3.0	2026-09-18	26.3	Fabric
0.3.0	2026-09-18	26.2	NeoForge
0.3.0	2026-09-18	26.2	Forge
0.3.0	2026-09-18	26.2	Fabric

Dependencies

Required: modrinth project P7dR8mSH (modrinth, not in our catalogue)

Declared by the newest build that lists any. Required ones are installed with it on one-click installs.

Run Castle Shift on a Minecraft server

Pick a server or deploy a new one above; it is installed in one click.

What kind of mod it is

From the catalog

Listed on Modrinth as “Mods”

World generation

Changes or adds to how new terrain, biomes and structures are created.

Runs on your server

From source side support

Modrinth lists Castle Shift as required on the server. Check its Modrinth page to see whether players need it too.

Compatibility

Game: Minecraft
Loaders: FabricForgeNeoForge
Runs on: Serverrequired on the server
Game versions: 26.3 and 14 earlier

Verified at the source

✓ModrinthOfficial listing, checked 2026-10-02Open ↗
✓Authorksoichiro, as published on Modrinth
✓LicenseLGPL-3.0-onlyFree

Castle Shift

Gallery