Set up Java, Fabric and the build mods
The blueprint block states target Minecraft Java 1.20.1. The recorded cabin import used Minecraft Java 26.3 with Fabric; the setup below reproduces that environment.
For another game version, choose matching Java and mod releases from their maintainers. You can also build by hand from the layer plans without mods.
Install a launcher and sign in
Our example uses HMCL on macOS. Download it from the HMCL project, sign in with an account that owns Minecraft Java, and let the launcher install the game. Another launcher can work too; the instance’s game folder is what matters below.
HMCL downloadsCreate an isolated instance
In HMCL, enable version isolation so each instance has its own game directory. Install a new instance named Blueprints-Mod-Test-26.3 with Minecraft Java 26.3 and Fabric Loader 0.20.1. Keep your existing worlds in their original instance.
HMCL instance isolationSelect the instance’s Java runtime
The recorded Apple Silicon run used BellSoft Java 25.0.5.0.3 arm64 with HMCL 3.16.4. Set Java in this instance’s settings. For a different game version or CPU, follow that version’s runtime requirements instead of copying this choice blindly. If Java is not installed, use BellSoft’s download page to select the required version, operating system and CPU, install it, and select that runtime in HMCL.
Download BellSoft JavaInstall the matching Fabric mods
With the game closed, open the new instance’s mods folder and add the releases below. Litematica needs MaLiLib; the recorded setup also included Fabric API. Use the Fabric release for the same game version, and keep one copy of each mod.
| Component | Recorded version | Official project release |
|---|---|---|
| Litematica | 0.29.1 | Open release |
| MaLiLib | 0.30.2 | Open release |
| WorldEdit | 7.4.6 | Open release |
| Fabric API | 0.165.0+26.3 | Open release |
This is the configuration recorded on 1 November 2026, not a “latest version” recommendation. The cabin files target Java 1.20.1 and were imported into Java 26.3 in this test; other version combinations need their own check.
Put each file in the right folder
Use HMCL’s instance browser to open the actual game directory. Inside that folder, put the .litematic in schematics and the .schem in config/worldedit/schematics. Create those folders if needed. Download the small cabin files below; do not rename their extensions.
mods/
litematica-fabric-26.3-0.29.1.jar
malilib-fabric-26.3-0.30.2.jar
worldedit-mod-7.4.6.jar
fabric-api-0.165.0+26.3.jar
schematics/
mossglen-cabin.litematic
config/worldedit/schematics/
mossglen-cabin.schemPaths are relative to the selected instance’s game directory. An isolated HMCL instance may be under .minecraft/versions/<instance>/.
Launch and create a test world
Launch the Fabric instance from HMCL. In Singleplayer, create a creative superflat world named Blueprints Import Test and allow commands. Open it, choose a clear area and leave enough room for the cabin. Use a new test world before trying imports in a world you care about.
If something does not work
Do I need a paid Minecraft account?
Yes for the official launcher and Java Edition. The mods themselves are free and open source.
Can I use a different mod loader?
This recorded setup uses Fabric. For another loader, check the release pages of each mod for a matching build; this guide does not verify that combination.