Multiplayer spell combat in Minecraft has always had one annoying friction point: vanilla Teams. Spell Engine x Open Parties and Claims Mod eliminates that entirely by bridging two popular systems — Spell Engine and Open Parties and Claims (OPAC) — so your party members won't get blasted by friendly fire during dungeon runs. With over 474,000 downloads on Modrinth, this lightweight compatibility patch by ElocinDev has become a must-have for Fabric servers running spell-based modpacks. If you use both Spell Engine and OPAC, this mod makes them actually talk to each other.
Key Features
- Native OPAC Integration for Spells — All Spell Engine spells now respect OPAC party and claim boundaries, so area-of-effect magic won't harm your allies or damage claimed land.
- No More Vanilla Teams Workaround — Removes the clunky dependency on Minecraft's built-in Teams system for PvP settings, letting OPAC handle everything cleanly.
- Universal Spell Compatibility — Works across every spell added by Spell Engine and its addon mods, ensuring consistent PvP behavior in multiplayer without per-spell configuration.
Screenshots
How to Install
- Download and install Fabric Loader for your Minecraft version.
- Make sure you have Fabric API, Spell Engine, and Open Parties and Claims installed in your mods folder.
- Download the Spell Engine x Open Parties and Claims Mod file for your Minecraft version.
- Place the downloaded
.jarfile into your.minecraft/modsfolder. - Launch Minecraft with the Fabric profile and verify the mod loads without errors.
Requirements
| Type | Details |
|---|---|
| Mod Loader | Fabric |
| Dependencies | Fabric API, Spell Engine Mod, Open Parties and Claims Mod |
| Minecraft Versions | 26.1, 1.21.11, 1.21.10, 1.21.9, 1.21.8, 1.21.7, 1.21.6, 1.21.5, 1.21.4, 1.19.2 |
Pros & Cons
Pros
- Seamlessly connects two widely-used mods without complex configuration
- Eliminates the vanilla Teams workaround that many server admins dislike
- Covers all Spell Engine spells automatically — no per-spell setup needed
- Open-source (MIT license) and actively maintained
- Also works with (Neo)Forge packs via Sinytra Connector
Cons
- Fabric-only — no native Forge or NeoForge build available
- Requires both Spell Engine and OPAC installed; no standalone use
- Limited to PvP/party compatibility — does not add new spells or features on its own
Download
Always download mods from official sources to stay safe.
What's New
- Added support for Minecraft 1.19.2, 1.20.1, and 1.21.1.
- Now works with Sinytra Connector for (Neo)Forge modpacks that use Spell Engine.
- Broadened version coverage so a single build supports multiple Minecraft releases.
FAQ
Does this mod work on Forge or NeoForge servers?
There is no native Forge build, but the changelog mentions compatibility with Sinytra Connector for (Neo)Forge packs that use Spell Engine. You would still need OPAC and Fabric API equivalents running through Connector.
Do I need to configure anything after installing?
No. Once installed alongside Spell Engine and OPAC, the mod automatically integrates spell PvP checks with the OPAC party and claims system. There is no additional configuration required.
Will this mod conflict with other Spell Engine addons?
It is designed to work across all Spell Engine spells universally, so any addon that uses Spell Engine's spell system should be covered automatically without conflicts.
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