Jellies
Jellies is a Forge addon for the TerraFirmaGreg-Modern modpack that adds slime-like jelly creatures used as ranch materials and pets, for 1.20.1.
What it does
The addon introduces Jellies as cute, slime-like creatures that are kept in ranches and can be collected as materials. Most jellies are reserved for collection and do not produce anything on their own, while others, such as the Plant, Glowberry, Latex, Phosphorum, Herbal and Biotite jellies, turn their output into slime balls. Those slime balls are then processed into other items by recipes defined in the modpack, so the chain of production depends on the pack the addon is installed in.
Jellies fits modpack players who run TerraFirmaGreg-Modern and want to expand its ranch and material economy. Some jellies work differently: the Certus, Rock and Cheese jellies produce goods in more specialised ways, and the Lava, Ice and Pentetic jellies follow mechanics that differ functionally from the rest. The addon is published for Forge and is built for 1.20.1 only.
Key features
Collectable jellies
Most jellies are kept for collection and do not produce output by themselves, so they serve as a stock of creatures.
Slime ball production
Several jellies, including the Plant, Glowberry, Latex, Phosphorum, Herbal and Biotite types, yield slime balls for further processing.
Unique production paths
The Certus, Rock and Cheese jellies produce goods through paths that are distinct from the standard slime ball chain.
Functionally different jellies
The Lava, Ice and Pentetic jellies follow mechanics that work differently from the rest of the set.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
Use cases
Who it’s for: Players and pack authors who run the TerraFirmaGreg-Modern modpack on Forge with 1.20.1, and who want jelly creatures as part of its ranch and material systems.
How it compares
Jelly's Mod is a Forge mod for 1.20.1 that runs on client and server, but it is released under All rights reserved and is not open source. Brine is another Forge mod for 1.20.1 with a client and server environment, under All rights reserved and not open source. Jellies differs from both by being an open source addon under the GNU Lesser General Public License v3.0 only, built for a modpack rather than standing alone.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| Jellies | Forge | 1.20.1 | Client and server | 2026-08-19 |
| Jelly's Mod | Forge | 1.20.1 | Client and server | 2025-07-01 |
| Brine | Forge | 1.20.1 | Client and server | 2025-05-30 |
Questions
Which loader does Jellies support?
Does Jellies have to be installed on both sides?
Does Jellies work outside TerraFirmaGreg-Modern?
In the catalog
Jellies is one of 11,058 Mobs mods on ModsFinder, and one of 6,527 Mobs mods for Forge. 34,764 mods support Minecraft 1.20.1.
More from TerraFirmaGreg-Team
Similar mods
What the author says
--- Jellies is an addon to TerraFirmaGreg-Modern (1.20.1) which adds cute slime-like Jellies that you can ranch for materials or keep them as pets.
Official listing
- Modrinth page
- modrinth.com/mod/jellies
- Owner
- TerraFirmaGreg-Team
- Published
- 2026-07-12
- Updated on Modrinth
- 2026-08-19
- Facts verified
- 2026-10-15