[BTW Addon] Schematica
by TheWinABagel
Schematica, a BTW addon for Legacy Fabric 1.6.4, lets a player save a finished build as a schematic file and place it again later, with a ghost overlay that shows where each block goes.
What it does
Schematica saves builds as schematic files so they can be reused or shared with other players. Once a schematic is loaded, the mod can place its blocks automatically, and it shows a ghost version of the build in the world so the player can line up each piece by hand.
While building, the overlay marks each block by its status: blue for a block that is already placed, red for a block of the wrong type, and orange for a block with the wrong state, such as facing the wrong direction or receiving the wrong redstone power. The mod also lists the materials a schematic needs. Its author notes that earlier versions placed some blocks wrongly, particularly moldings and corners.
The mod is a client mod for Legacy Fabric and is published only for 1.6.4, with the latest file dated 2026-07-10. Clients need it, while the server may run without it. The code is open source under the MIT License, with public source code and an issue tracker.
Key features
Schematic saving
Finished builds are written to schematic files that can be loaded again or handed to another player.
Automatic placement
A loaded schematic can be placed block by block by the mod, rather than by hand.
Ghost overlay
A translucent preview of the build is drawn in the world to guide placement of each block.
Color-coded block status
Blue, red and orange markers show which blocks are placed, have the wrong type, or have the wrong state.
Material list
The mod lists the blocks a schematic requires, so the player can gather them before building.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Rebuilding a structure
A player who has already built something can save it and place it again in another part of the world.
Sharing builds
Schematic files let a player give a finished design to another player for the same version.
Who it’s for: Players of the 1.6.4 BTW modpack who build large or repeated structures and want a guide for placement and a list of needed materials.
How it compares
Attempt Counter is a client-side only addon for Legacy Fabric 1.6.4, under the Creative Commons Attribution 4.0 license and not open source, so it counts attempts rather than guiding placement. Zoomify is also a client-side mod for 1.6.4, but it is open source under the GNU Lesser General Public License v3.0 only and covers camera zoom, not building.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| [BTW Addon] Schematica | Legacy Fabric | 1.6.4 | Client required, server optional | 2026-07-10 |
| [BTW Addon] Attempt Counter | Legacy Fabric | 1.6.4 | Client-side only | 2026-06-30 |
| Zoomify [BTW Port] | Legacy Fabric | 1.6.4 | Client-side only | 2026-07-14 |
Questions
Does Schematica need to be installed on the server?
Which game version does Schematica support?
Is Schematica open source?
In the catalog
[BTW Addon] Schematica is one of 36,990 Utility mods on ModsFinder. 328 mods support Minecraft 1.6.4.
More from TheWinABagel
Similar mods
Official listing
- Modrinth page
- modrinth.com/mod/btw-schematica
- Owner
- TheWinABagel
- Published
- 2026-02-11
- Updated on Modrinth
- 2026-07-10
- Facts verified
- 2026-10-15