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Hollow Knight MultiWorld
What it is
Hollow Knight MultiWorld is a free, open-source set of add-ons for Hollow Knight Randomizer 4.0. MultiWorld places randomized items across linked game files for cooperative play, while the separate ItemSync add-on shares randomized pickups among players in a room. Players can use local randomizer mods and open their own randomizer settings. They can choose nicknames that appear when their items are collected in another world, and use room codes when connecting and readying up. A random identifier gives each generated randomization its own session, allowing multiple games on one server. Players can save, reload, reconnect, and rejoin to recover MultiWorld data after a crash before their first save. Mods are available through Scarab, which installs dependencies automatically. Documentation covers a public server and local hosting with MultiWorldServer.exe; WAN hosting requires forwarding port 38281. Windows and self-hosting are supported under the LGPL-2.1 license.
For and against
For
- Cooperative item distribution across linked game files
- Separate ItemSync room pickup sharing
- Per-player randomizer settings and local mods
- Reconnect and crash-recovery support
- Open-source under LGPL-2.1
Against
- Requires Hollow Knight Randomizer 4.0
- Windows is the listed supported platform
- WAN hosting requires port forwarding
- Detailed spoiler logs are still planned
The verdict
Hollow Knight MultiWorld focuses on cooperative randomized play, with per-player settings, room coordination, and recovery tools. Its server documentation supports either a public connection or local hosting, while advanced spoiler logs remain a future feature.
Who it suits
It suits Hollow Knight Randomizer 4.0 players who want cooperative item sharing across linked worlds. It also suits Windows users or hosts prepared to run a server themselves.
On the record
- Concurrent games
- The server assigns a random identifier to a generated randomization so multiple sessions can run concurrently on one server.github.com · read 9 Oct 2026
- Concurrent sessions
- The server uses a random identifier to start separate sessions so multiple randomizer games can run simultaneously on one server.github.com · read 8 Oct 2026
- Game dependency
- The add-ons are for Hollow Knight Randomizer 4.0.github.com · read 8 Oct 2026
- Installation
- The maker says the mods are available through Scarab and that installing a mod automatically installs its dependencies.github.com · read 9 Oct 2026
- ItemSync
- The separate ItemSync add-on shares randomized item pickups among players in a room.github.com · read 9 Oct 2026
- License
- The repository lists the project under the LGPL-2.1 license.github.com · read 9 Oct 2026
- Local randomizers
- MultiWorld lets players use local randomizer mods and their features.github.com · read 8 Oct 2026
- Nicknames
- Players can set nicknames that appear when their items are picked up in other worlds.github.com · read 8 Oct 2026
- Notable limitation
- Detailed spoiler logs containing all players’ information are listed as a future feature.github.com · read 9 Oct 2026
- Per-player settings
- Each player can access the settings of their own randomizer.github.com · read 8 Oct 2026
- Planned feature
- Detailed spoiler logs containing all players' information are listed as a future feature.github.com · read 8 Oct 2026
- Player identification
- Players can set nicknames that appear when their items are picked up in other worlds.github.com · read 9 Oct 2026
- Public server
- The documentation lists a public server at 3.131.129.52 for connecting to a game.github.com · read 9 Oct 2026
- Purpose
- Hollow Knight MultiWorld is a Randomizer 4 add-on that distributes items across linked game files so players can receive items found in other players’ worlds.github.com · read 9 Oct 2026
- Randomizer support
- MultiWorld uses local randomizer mods and lets each player access their own randomizer settings.github.com · read 9 Oct 2026
- Room coordination
- Players can use room codes to coordinate before starting a game, and room names can be reused after generation.github.com · read 9 Oct 2026
- Save recovery
- MultiWorld supports saving and reloading, reconnecting without losing progress, and rejoining a session if a player crashes before their first save.github.com · read 9 Oct 2026
- Security
- The opened project pages do not state security or compliance certifications or controls.github.com · read 8 Oct 2026
