MultiworldGG

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What MultiworldGG is

MultiworldGG randomizes supported games into a shared multiplayer experience, where an item found in one player’s game can belong to someone playing another. It can also generate supported games as single-player experiences. The project is a fork of Archipelago with adjustments and additional third-party worlds. Players can generate worlds locally with the desktop client or use the website by uploading YAML configuration files or ZIP archives. Lobbies let players join, upload configurations and coordinate in chat before the host generates a multiworld. A host can upload a generated ZIP or multidata file and offer trackers and patch-file downloads. Desktop downloads are available for Windows, Mac and Linux; installations include a launcher, generator, server and some clients. The bundled server can host locally on default port 38281. Website-generated multiplayer games are limited to 30 players, while larger games require local generation. The supported-games catalog warns that many worlds are still in development and may be buggy or unfinished. Custom APWorld files can run code on a user’s computer, so their source should be checked before use.

Who it suits

MultiworldGG suits players who want to randomize supported games together, either across a group or as single-player experiences. Its local generation option can serve groups that need more than 30 players.

What it does well

Items can be randomized across players’ games.
Lobbies provide configuration sharing and group chat.
Worlds can be generated locally or on the website.
Desktop downloads are available for Windows, Mac and Linux.

What to know first

Website multiplayer generation is limited to 30 players.
Many supported worlds may be unfinished or buggy.
Custom APWorld files can run code on your computer.

Limits

Website-generated multiplayer games support a maximum of 30 players; larger games must be generated locally. Website room servers shut down after four hours of inactivity, while saving multiworld progress.

Getting started

Visit the MultiworldGG website to use web generation, or download a desktop client for Windows, Mac, or Linux.
For web generation, upload a YAML configuration file or ZIP archive.
For a local game, use the desktop client to connect to multiworlds or generate worlds locally.
To coordinate a group, join a lobby, upload configurations, and use chat before the host generates the game.
To host locally, use the bundled server, which uses default port 38281.

Verdict

MultiworldGG offers both browser-based and local generation for multi-game sessions, with lobby tools for coordinating a group. Check world maturity and custom-file sources before using them.

Questions

Is MultiworldGG free and open source?

It is listed as free and open source. The combined distribution uses GPLv3, while some original MIT-licensed modules remain separately available under MIT terms.

Which platforms have desktop downloads?

Desktop clients are available for Windows, Mac, and Linux. The project says it does not provide a feature-complete OSX client.

Can I generate a game on the website?

Yes. The website generates games from uploaded YAML configuration files or ZIP archives. Website-generated multiplayer games are limited to 30 players.

Can I generate worlds locally or host a game myself?

Yes. The desktop client can generate worlds locally, and the bundled server can host a multiworld locally using default port 38281.

What should I know about supported games?

The catalog includes many games, but warns that many worlds are in development and may be buggy or unfinished.

What should I know about custom APWorld files?

They can run custom code on your computer. The project recommends verifying that their source is safe and trustworthy.

Facts from MultiworldGG's own pages

Bundled components: Installations include a launcher, generator, server and some clients. · multiworld.gg, 1 Oct 2026
Cross-game play: Players can randomize different supported games and send items between them in one multiplayer environment. · multiworld.gg, 2 Oct 2026
Desktop downloads: The download page offers desktop clients for Windows, Mac, and Linux and says the client can connect to worlds without a custom client or generate worlds locally. · multiworld.gg, 2 Oct 2026
Desktop platforms: Downloads are provided for Windows, Mac and Linux. · multiworld.gg, 1 Oct 2026
Game catalog: The supported games page lists included games and warns that many are in active development and may be buggy or unfinished. · multiworld.gg, 2 Oct 2026
Generation controls: The web generation page offers settings including spoiler logs, hint mode, server password, and plando options. · multiworld.gg, 2 Oct 2026
Generation limit: Website-generated multiplayer games currently have a maximum of 30 players; larger games must be generated locally. · multiworld.gg, 1 Oct 2026
Hosting: Players can generate a game on the website, create a room, and host a multiplayer session; the software guide also describes hosting locally. · multiworld.gg, 2 Oct 2026
License: The combined distribution is licensed under GPLv3, while some original MIT-licensed modules remain separately available under MIT terms. · github.com, 1 Oct 2026
Lobbies: Lobbies let players join, upload their own configuration files, coordinate in chat, and have the host generate a seed when the group is ready. · multiworld.gg, 2 Oct 2026
Lobby collaboration: Lobbies let players join, upload their own configurations, chat, and generate a multiworld when ready. · multiworld.gg, 1 Oct 2026
Local generation: The desktop client can connect to multiworlds and generate worlds locally. · multiworld.gg, 1 Oct 2026
Local hosting: The bundled server can host a multiworld locally, using default port 38281. · multiworld.gg, 1 Oct 2026
Mac limitation: The download page says it cannot provide a feature-complete OSX client and that some games may not work because of incompatible libraries. · multiworld.gg, 2 Oct 2026
Open source: The maker says provided desktop releases are built from publicly available source code. · multiworld.gg, 2 Oct 2026
Product: MultiworldGG is a multi-game multiworld randomizer that combines randomized games into one multiplayer game, where items found in one game can belong to a player in another. · multiworld.gg, 2 Oct 2026
Project basis: The maker says MultiworldGG is based on Archipelago and is a fork with tweaks, additional third-party worlds, and worlds in earlier development stages. · multiworld.gg, 2 Oct 2026
Project lineage: MultiworldGG is a fork of Archipelago with tweaks and additional third-party worlds. · multiworld.gg, 1 Oct 2026
Related tools: The site links a web text client, checklist tracker, Cheese Trackers, manual world client, community wiki and Discord. · multiworld.gg, 1 Oct 2026
Room retention: Website room servers shut down after four hours of inactivity and save multiworld progress. · multiworld.gg, 1 Oct 2026
Security warning: Custom APWorld files can run custom code on the user's computer, so the guide recommends verifying their source is safe and trustworthy. · multiworld.gg, 1 Oct 2026
Single-player: Supported games can be generated as single-player experiences on the website or with the installed generator software. · multiworld.gg, 2 Oct 2026
Support: The homepage asks users to report bugs through Discord first to minimize support load for developers. · multiworld.gg, 2 Oct 2026
Support channel: The project asks users to report bugs through its Discord server to reduce developer support load. · multiworld.gg, 1 Oct 2026

Where MultiworldGG stands on Freedom251

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