Plusmatica

Plusmatica is a client-side Fabric mod that adds a shape-based building workflow on top of Litematica. Generate geometric shapes, capture existing builds from the world, and manage schematics directly in-game.

Plusmatica works through Litematica's placement system and never places blocks for you, so it stays server-friendly.

Shape generation

Create shapes from a radial menu (line, area, box, circle, cylinder, sphere) using the block in your main hand as the material. Each shape appears as a translucent ghost preview you can adjust live:

• Move, resize, extend, and raise/lower
• Cut faces, mirror, and rotate
• Slope flat shapes (area, box, circle, oval) into stepped, tilted forms
• Shear boxes and areas into parallelograms
• Enter exact coordinates and dimensions numerically, with steppers
• Hollow or filled, with a selectable reference point

Schematic management

A dedicated in-game menu to handle all your schematics:

• List, rename, sort, show/hide, edit, and delete
• Re-edit generated shapes with their original parameters
• Per-block editing: replace, disable, or remove individual block types, with block-property transfer

Material list

Per schematic:

• Needed and missing counts, live against the world
• A multiplier for building multiple copies
• Search, sorting, and text-file export

Capture from the world

Select two corners in the world to create a schematic from existing blocks. Adjust the selection box like a shape, then save it.

Import and export

• Import .litematic, .schematic, and .nbt files
• Export any schematic to a file
• Reload all schematics with one key

Settings

• ModMenu integration with direct access to the settings screen
• Remappable keybinds, grouped by function
• Optional toggle to disable Litematica's own menu and stick
• Crosshair info and clickable chat notifications
• Available in multiple languages

Requirements

• Minecraft 1.21.11 (Fabric)
• Litematica and MaLiLib
• Fabric API
• Client-side only

Source & issues

Plusmatica is open source under GPLv3. Source code and issue tracker: GitHub

Built on Litematica and MaLiLib by masa — all credit for those projects goes to their authors.