SIathora
by oxydien
Siathora turns tamed animals into companions that grow stronger by absorbing the souls of slain mobs, and it is available for Fabric and Quilt on 1.21 – 1.21.1.
What it does
Killing entities produces souls, which are collected and given to a Siathora companion, an animal that has been swayed by the goddess of canids. Each soul is tied to a creature type, so the companion gains stats and abilities that match the soul it received. Giving more souls of one kind raises the companion's sway and its stats, and after enough souls a companion can grow wings and fly. When a swayed creature dies it drops an echo, which can be used to sway other animals.
The mod requires Fabric API, Mathimations and riamphur. Mathimations handles the animations and riamphur handles the soul system, so both libraries must be installed next to Siathora or the mod does not work. Servers that run it need every player to install it too. Files are published for Fabric and Quilt on 1.21 – 1.21.1 under the GNU General Public License v3.0 only, and the mod is open source with public source code and an issue tracker.
Key features
Soul collection
Mobs killed in the world drop souls that can be given to a companion to strengthen it.
Soul-based stats
Each soul type gives a companion different stats and abilities, changing how the animal fights and behaves.
Companion growth
Feeding a companion enough souls grows it into a larger form, and enough souls grant the ability to fly.
Echo drops
A swayed creature that dies leaves an echo, which is used to sway other animals into companions.
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.
Required 3
Use cases
Taming animals into companions
Players who keep wolves, foxes or other tamed animals can turn them into companions and build each one's abilities over time.
Who it’s for: Players who want tamed animals to become stronger over a long playthrough, and server owners who want companion progression in a shared world. The mod needs both libraries installed.
How it compares
Soulmade is a Fabric and Quilt mod for 1.21.1 – 1.21.5 under the MIT License, and it runs on client and server like Siathora. Soul Scythe is a Fabric, Forge, NeoForge and Quilt mod for 1.21 – 1.21.10 under All rights reserved, where the server is required and the client is optional, and it is not open source. Both alternatives add soul-related content in a different direction from Siathora's companion system.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| SIathora | Fabric and Quilt | 1.21 – 1.21.1 | Client and server | 2026-07-27 |
| Soulmade | Fabric and Quilt | 1.21.1 – 1.21.5 | Client and server | 2025-11-26 |
| Soul Scythe | Fabric, Forge, NeoForge and Quilt | 1.21 – 1.21.10 | Server required, client optional | 2025-11-25 |
Questions
Does Siathora need Mathimations and riamphur?
Does Siathora have to be installed on the server?
Which loaders and versions does Siathora support?
In the catalog
SIathora is one of 7,216 Magic mods on ModsFinder, and one of 3,630 Magic mods for Fabric. 32,366 mods support Minecraft 1.21.1.
More from oxydien
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What the author says
Siathora is a Fabric mod for Minecraft 1.21.1 that lets you turn ordinary tamed animals into powerful companions. Collect souls from killed mobs, then give them to your siathora companion. Depending on which souls you use, your companion gains new stats and abilities, slowly transforming into something much stronger…
Official listing
- Modrinth page
- modrinth.com/mod/siathora
- Owner
- oxydien
- Published
- 2026-07-27
- Updated on Modrinth
- 2026-07-27
- Facts verified
- 2026-10-15