OpacFixes

Server-side Forge 1.20.1 addon for Open Parties and Claims adds admin claim tools and fixes forceloads

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forgemanagementutility

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About this Mod

🛠️ OpacFixes

Server-side utility mod for Open Parties and Claims (OPAC) on Minecraft Forge 1.20.1.

OpacFixes adds admin-focused claim management commands and improves chunk forceload reliability in performance-heavy modpacks.

✨ What this mod does

🔍 Find player claims fast

Use /openpac-find <username> to list a player's claims (including offline players from the claim index), with clickable admin actions.

🧹 Wipe claims safely

Use /openpac-wipe <username> [dryrun] to remove all claims for a player across dimensions.

dryrun lets you preview how many chunks would be affected.

⚙️ Forceload reliability improvements

Adds extra enforcement layers so OPAC forceloaded chunks are less likely to unload when other mods alter ticket/chunk behavior.

✅ Highlights

🖥️ Server-side only (clients do not need this mod installed)
👮 Admin tools for moderation and cleanup
🧠 Offline-aware autocomplete via persistent claim owner index
🧩 Built specifically for OPAC ecosystems
🛡️ Safer claim operations with confirmation flows for destructive actions

📦 Compatibility

Minecraft: 1.20.1
Loader: Forge
Java: 17
Required dependency: Open Parties and Claims (OPAC) 0.25.x+
Recommended OPAC version: 1.20.1-0.25.10

⌨️ Commands

/openpac-find <username>
/openpac-find confirm-wipe <username>
/openpac-wipe <username>
/openpac-wipe <username> dryrun

Default permission level: operator/admin (configurable by server setup).

📁 Installation (Server)

Install Minecraft Forge 1.20.1 server.
Put Open Parties and Claims in mods/.
Put OpacFixes in mods/.
Start the server.

❓ FAQ

Q: Do players need OpacFixes on the client?
A: No. This mod is designed to be server-side.

Q: Does this replace OPAC?
A: No. It extends/fixes behavior around OPAC workflows.

Q: Can I test wipe results before deleting claims?
A: Yes, use dryrun.

💬 Support / Issues

If you hit an issue, please include:

Minecraft + Forge versions
OPAC version
OpacFixes version
Exact command used
Relevant server log snippet

Available Versions

OpacFixes 1.0release

MC 1.20.1, 1.20.2, 1.20.3, 1.20.4, 1.20.5, 1.20.6forge

March 13, 2026

How to Install OpacFixes on Your Server

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

Set forge Loader

In the panel under "Egg", select the forge loader and matching Minecraft version (1.20.6).

Install Mod

Open the mod browser in the dashboard and search for "OpacFixes". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

forge

Minecraft Versions

1.20.6, 1.20.5, 1.20.4 (+3 more)

Server-side

✓ Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

OpacFixes server crashes on startup – what to do?

Most common cause: wrong forge version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.20.6). You can switch loaders with one click in the panel.

Is OpacFixes compatible with forge?

OpacFixes officially supports forge for Minecraft 1.20.6, 1.20.5, 1.20.4. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with OpacFixes – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if OpacFixes consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.