OPAC Better GUI
by Mapter
OPAC Better GUI adds a new menu for managing party groups, opened from the main menu of a companion party-and-claims mod or with a command.
What it does
The menu is reached through the main menu of the companion party-and-claims mod, or by typing the opacgui command, and it is meant for managing party members without leaving the screen. It lists online players on the server, lists the members of a party, and shows only the names of allied parties, so a player can see who belongs to which group at a glance.
Buttons in the menu add and remove players from a party and grant ally status with a single click. A party can be created immediately under a chosen name, and existing parties and claims can be renamed. A color selector changes the party color, and a hat option sets the party hat. The mod runs on the client only and needs the server to have the companion mod installed, and the Addon Open Parties Claims addon is listed as working with it. Files target Forge for 1.20.1 only, and the author lists further visual and technical improvements as planned for later updates. The code is released under the MIT License, but the project is not open source.
Key features
Party member list
The screen lists the members of a selected party, so their names can be checked without opening separate views.
Online player list
Players currently online on the server are shown in one list, which makes inviting or adding them quicker.
Quick member and ally buttons
One-click buttons add or remove a player from a party and set a player as an ally.
Party creation and renaming
A new party can be created with a name immediately, and existing parties and claims can be renamed from the same menu.
Party color and hat
Each party's color can be changed from the menu, and a hat can be set for the party.
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 who use the companion party-and-claims mod on Forge 1.20.1 and want a menu for party management, and server owners who run that mod alongside it.
How it compares
OpacFixes is server-side only, released under All rights reserved, and covers 1.20.1 – 1.20.6 on Forge, so it is installed on the server rather than in the client. NickChangerS is client-side only, released under the MIT License, and built for 1.20.1 on Forge, which makes it the closest match in environment and version. Nickname Easy is server-side only under the MIT License and covers 1.20.1 – 1.21.8 on Forge, so it is a server mod for player names rather than a client menu.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| OPAC Better GUI | Forge | 1.20.1 | Client-side only | 2025-12-15 |
| OpacFixes | Forge | 1.20.1 – 1.20.6 | Server-side only | 2026-03-13 |
| NickChangerS | Forge | 1.20.1 | Client-side only | 2026-03-11 |
| Nickname Easy | Forge | 1.20.1 – 1.21.8 | Server-side only | 2025-09-13 |
Questions
Which game version and loader does OPAC Better GUI support?
How is the menu opened?
In the catalog
OPAC Better GUI is one of 5,392 Social mods on ModsFinder, and one of 1,817 Social mods for Forge. 34,764 mods support Minecraft 1.20.1.
More from Mapter
Similar mods
What the author says
Addon for Open Parties And Claims. It adds a new menu to the user interface for convenient management of your group. This mod runs on the client side! It does not need to be installed on the server. You can open a new menu through the main menu of the mod "Open parties and claims" or using the command /opacgui menu
Official listing
- Modrinth page
- modrinth.com/mod/opac-better-gui
- Owner
- Mapter
- Published
- 2025-12-15
- Updated on Modrinth
- 2025-12-15
- Facts verified
- 2026-10-15