ModsFinder

Caduceus

by object-Object

With Caduceus, Hex Casting spells gain delimited continuations, continuation marks and jump iota handling, as an advanced meta-evaluation addon written in Clojure.

FabricForgeClient and serverMIT LicenseOpen source1.20.1

What it does

Caduceus extends Hex Casting with meta-evaluation features: delimited continuations, continuation marks and jump iota manipulation. The jump iota display is also reworked so its contents are easier to read. Most of the code is written in Clojure, outside of Mixin.

Installation needs Architectury API and Hex Casting on both Fabric and Forge, plus Fabric API on Fabric. Caduceus runs on client and server, so the server and every player need it. Builds target 1.20.1 only, with 0.3.0+1.20.1 as the latest file on both loaders, under the MIT License, which is open source.

Key features

  1. Delimited continuations

    Spells can capture and resume evaluation at marked points, using delimited continuations inside Hex Casting.

  2. Continuation marks

    Marks placed in an evaluation let a spell tag frames of its continuation and read them back later.

  3. Jump iota manipulation

    Jump iotas can be created and changed, giving spells control over where evaluation resumes.

  4. Clearer jump iota display

    Jump iotas are shown in an improved format, so their targets are easier to follow while a spell runs.

Compatibility

Latest build for each game version and loader.

1.20.10.3.0+1.20.10.3.0+1.20.1
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Requirements

Dependencies declared by the latest file for each loader.

Required 3

Architectury APIAn intermediary api aimed to ease developing multiplatform mods.
Required
Fabric APILightweight and modular API providing common hooks and intercompatibility measures utilized by mods using the Fabric toolchain.
Required
Hex CastingPowerful programmable stack-based spellcasting
Required

How it compares

Full comparison

HexConnect is Forge-only, open source is not claimed for it, and it targets 1.20.1 with the same client and server environment. Abandoned Greatwork is open source under the MIT License, published for Fabric and Forge on 1.20.1, and Almightly Staff covers the same loaders and version. Caduceus adds the continuation features on top of the base mod instead of building its own item set.

ModLoadersGame versionsEnvironmentUpdated
CaduceusFabric and Forge1.20.1Client and server2026-07-25
HexConnectForge1.20.1Client and server2025-09-09
Abandoned GreatworkFabric and Forge1.20.1Client and server2026-08-15
Almightly StaffFabric and Forge1.20.1Client and server2026-10-11

Questions

Does Caduceus need Architectury API?

Yes. Architectury API is a required dependency, alongside Hex Casting and, on Fabric, Fabric API.

Does Caduceus have to be installed on the server?

Yes. Every player and the server need a copy of the mod.

Which Minecraft versions does Caduceus support?

Caduceus is published for 1.20.1 only, with 0.3.0+1.20.1 as the latest file for both Fabric and Forge.

In the catalog

Caduceus is one of 7,555 Cursed mods on ModsFinder, and one of 4,235 Cursed mods for Fabric. 34,764 mods support Minecraft 1.20.1.

Cursed mods7,555Fabric modsMods for 1.20.134,764

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What the author says

A Clojure-based Hex Casting addon for advanced meta-evaluation. Created for HexJam 2025.
object-Object, on the Modrinth page

Official listing

Owner
object-Object
Published
2025-06-23
Updated on Modrinth
2026-07-25
Facts verified
2026-10-15

Tags

CursedMagic
Open on ModrinthCompare