BBS Structure Addon
by ElGatoPro300
BBS Structure Addon lets the BBS animation tool use structures saved from a standard Minecraft Structure Block as replay elements, so saved builds can be animated and moved in a scene.
What it does
The addon is a Fabric add-on for the BBS mod, which must be installed alongside it. A structure is built and saved with a Structure Block as usual, then selected in the Forms Selection Menu from the Tree icon and taken into the Forms Editor. From there the saved structure can be set up with animation and manipulated like any other form in the scene. Scenes that need a whole structure animated, rather than individual blocks, are the main case the addon covers.
The addon is based on the BBS CML Edition fork of Blockbuster's Structure Form, a feature the author describes as widely requested by the community. It is published as a standalone addon, so it can be used on its own rather than through another fork. Setup is short, since the structure is created in-game and selected through the existing BBS menus. The addon runs on the client and the server, so both need it, and it is published for 1.20.1 and 1.20.4 with 1.1.1-1.20.4 as the latest Fabric file. The source code is public and the mod is open source under the MIT License.
Key features
Structure Block import
Structures saved with the standard Minecraft Structure Block become usable as BBS forms.
Forms Selection Menu entry
Saved structures appear in the Forms Selection Menu, opened from the Tree icon, and are picked from there.
Animated structure forms
A structure form can be animated in the Forms Editor, the same way other BBS replay elements are.
Standalone fork
The addon works on top of the BBS CML Edition approach as a separate mod, not as a replacement for official BBS.
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Requirements
Dependencies declared by the latest file for each loader.
Required 1
Use cases
Who it’s for: Players who make animated scenes with BBS and want to bring prebuilt Minecraft structures into them. The mod is a plain add-on and needs the BBS mod to run.
How it compares
BBS Light Form Addon is also a Fabric add-on for the 1.20.1 – 1.20.4 range, with client and server installs, but it is released under the Apache License 2.0 and is not open source. BBS Server Sync Addon targets Fabric and Forge for the same range and is released with all rights reserved, so its source is not available for reuse. BBS Structure Addon differs by covering structures saved from the Structure Block, while the others are not designed around that import.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| BBS Structure Addon | Fabric | 1.20.1 – 1.20.4 | Client and server | 2026-03-24 |
| BBS Light Form Addon | Fabric | 1.20.1 – 1.20.4 | Client and server | 2026-01-07 |
| BBS Server Sync Addon | Fabric and Forge | 1.20.1 – 1.20.4 | Client and server | 2025-08-24 |
Questions
Does BBS Structure Addon need the BBS mod?
Which loader does BBS Structure Addon support?
Does the server need the addon?
Which game versions are covered?
More from ElGatoPro300
What the author says
Bring back a fan-favorite feature! Highly requested by the community—especially by those who remember Blockbuster (1.12)—the beloved Structure Form from the BBS CML EDITION fork is now available as a standalone addon. You can now enjoy this powerful tool on the Official BBS and other forks!
Official listing
- Modrinth page
- modrinth.com/mod/bbs-structureform-addon
- Owner
- ElGatoPro300
- Published
- 2026-03-01
- Updated on Modrinth
- 2026-03-24
- Facts verified
- 2026-10-15