ApothSB
by night23
ApothSB lets Apotheosis gems be placed in Sophisticated Backpacks filter slots, a combination that was blocked before this compatibility fix.
What it does
Sophisticated Backpacks filter slots normally reject Apotheosis gems. ApothSB changes that, so a gem can sit in a filter slot and the tag filter can select the apotheosis:gem tag correctly once a gem is placed. Filter slots that hold gems then work for upgrades such as the filter, pickup and magnet upgrades.
The mod is a lightweight compatibility fix rather than a gameplay addition. It starts cleanly when either Apotheosis or the backpack mod is missing, since both are optional dependencies, so it can stay in a pack that only sometimes includes them. Only the client and the server need it, and the source code and issue tracker are public under the MIT License.
The files target Forge for 1.19.2 and 1.20.1, with 1.0.3 for 1.20.1 as the latest build, published on 2026-06-10. The first build appeared on 2026-04-29.
Key features
Gems in backpack filter slots
Apotheosis gems can be placed in Sophisticated Backpacks filter slots where the game previously refused them.
Working gem tag selection
After a gem is placed, selecting the apotheosis:gem tag in the filter works as intended.
Gems with backpack upgrades
Filter, pickup and magnet upgrades can use a gem slot once the gem is in place.
Safe optional loading
The mod loads without Apotheosis or Sophisticated Backpacks present, so it adds no crash risk when either is missing.
Gallery
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.
Optional 2
Use cases
Who it’s for: Players and pack authors who run Apotheosis and Sophisticated Backpacks together on Forge 1.19.2 or 1.20.1 and want gems to work in backpack filter slots.
How it compares
Backpack Side GUI is a Forge and NeoForge mod for 1.20.1 – 1.21.1, client and server, under the MIT License, and it is not open source. More Backpack Upgrades is an open source Forge mod for 1.20.1 under the GNU Lesser General Public License v2.1 or later, and it runs on client and server. Semi's Backpacks is a Forge mod for 1.20.1 that runs on the server alone, under the MIT License, and it is not open source. ApothSB covers a different job: it fixes gem filtering in backpack filter slots rather than adding backpack upgrades or GUI changes.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| ApothSB | Forge | 1.19.2 – 1.20.1 | Client and server | 2026-06-10 |
| Backpack Side GUI | Forge and NeoForge | 1.20.1 – 1.21.1 | Client and server | 2026-06-20 |
| More Backpack Upgrades | Forge | 1.20.1 | Client and server | 2025-12-21 |
| Semi's Backpacks | Forge | 1.20.1 | Server-side only | 2025-02-20 |
Questions
Does ApothSB need Apotheosis to run?
Which loaders does ApothSB support?
Does ApothSB have to be installed on the server?
In the catalog
ApothSB is one of 4,058 Storage mods on ModsFinder, and one of 1,886 Storage mods for Forge. 34,764 mods support Minecraft 1.20.1.
More from night23
Similar mods
What the author says
ApothSB allows Apotheosis gems to be placed into Sophisticated Backpacks filter slots, fixing an incompatibility that prevented tag-based gem filtering.
Official listing
- Modrinth page
- modrinth.com/mod/apothsb
- Owner
- night23
- Published
- 2026-04-29
- Updated on Modrinth
- 2026-06-10
- Facts verified
- 2026-10-15