Off Da Grid Blocks

Break free from the grid. Off Grid Blocks lets you place every block at sub-block positions and at the angle you're looking — freeform, tilted, offset structures that normal Minecraft never allows. And it isn't just decoration: chests, redstone, pistons, rails, and even nether portals keep working off the grid.

No tools or special items to learn — pull a block from your inventory and place it like normal. It lands exactly where your cursor points, rotated to match your view.

Features

Feature	What you get
Free placement & rotation	Blocks sit at fractional positions and tilt to your look direction — diagonal walls, leaning pillars, natural clutter
Real hitboxes	Collision matches each block's true shape (half slabs, thin fences, flat carpets), so you can stand on what you build
Working utility blocks	Crafting tables, anvils, chests, furnaces, hoppers, droppers and more open and function; contents persist
Doors, beds, cake, switches	Doors open, beds skip the night, cake is edible, levers/buttons toggle — visuals update to match
Redstone	Dust, repeaters, comparators, observers, levers, buttons and lamps wire up and pass signals
Pistons	Push & pull off-grid blocks at any angle, with full slime/honey adhesion and redstone power
Observers	Detect off-grid blocks placed or broken in front of them
Minecarts on rails	Lay off-grid rails, drop a minecart, and ride it through straights and curves
Nether portals	Build an off-grid obsidian frame, light it, and travel to the Nether and back
Light & gravity	Glowing blocks light the area; sand/gravel/concrete place off-grid without falling

Controls

Action	Result
Right-click with a block	Place it off-grid, rotated to your view
Right-click an off-grid block	Stack another off-grid block on it
Left-click an off-grid block	Break it (drops as normal)
Flint & steel on off-grid obsidian	Light a nether portal in the frame
Minecart on an off-grid rail	Spawn a cart — right-click it to ride
Redstone block / powered lever on a piston	Fire the piston (any side except the head)

Before you download — please read

[!IMPORTANT]

• Requires Fabric Loader and Fabric API for Minecraft 1.21.1.
• Must be installed on both the client and the server, on the same version. A vanilla client cannot join a server running this mod and have it work.
• This mod changes how all block placement works. It's built for creative and freeform building — it is not a vanilla-compatible drop-in.

Known limitations

These are honest trade-offs, not bugs:

• Collision is axis-aligned. A tilted block still has an upright, straight hitbox — the engine can't give entities rotated collision boxes (the same reason boats and shulkers don't).
• Redstone is best-effort. It works well for flat, roughly grid-spaced layouts. Very tight sub-block spacing, tall vertical stacks, and very large contraptions aren't fully supported.
• Pistons move off-grid blocks only, not normal world blocks or entities.

How does it work under the hood? (optional reading)

Each off-grid block is a pair of entities: a vanilla Block Display for the visual (which is what carries the rotation) and an invisible collision entity for the hitbox. Blocks that need real function — containers, redstone, interactions — are mirrored to a hidden region of the world so the vanilla logic still runs, and the result is synced back to what you see.

This is why the mod must be on both sides: the custom collision entity has to exist on the client for you to actually bump into it.

Compatibility

Minecraft	1.21.1
Loader	Fabric
Dependencies	Fabric API
Environment	Required on client and server

If you hit an issue, please report it with a clear description of what you placed and what happened — it really helps.