Noxesium is a mod available on Fabric which improves your experience when playing on large multiplayer servers. Here’s some of the main things Noxesium does:

Fixes various vanilla bugs such as MC-263293 (Dying resets toggle sprint) and MC-259812 (Transparent objects are invisible behind text displays).
Adds extra systems which lets servers add more content, including a custom sound system, creating custom speed boosters or jump pads, and drawing player heads in text.

Noxesium is directly developed by Noxcrew, creators of MC Championship and MCC Island, as a result most features of Noxesium originate directly from issues encountered by players of those projects.

Noxesium is also automatically included on some versions of Lunar Client.

Features

Noxesium has a lot of different features, so they are split into various small groups below:

🐛 Vanilla Bugfixes

MC-256850: Moving piston walls don’t flicker as much while moving
MC-259812: Transparent entity models are now properly visible behind text displays
MC-263293: Adds a new accessibility setting to disable toggle sprint resetting on death (enabled by default)
Passenger entities being teleported no longer jitter

📜 General Features

A new accessibility setting that can be used to render maps held in the off-hand as a UI element instead. This makes it easier to read the map especially when using View Bobbing. Servers can also remotely enable this feature if they want to enforce it.
Extra debug overlays which can be used to see your current fps or show extra information for server and shader developers.

💻 Server Features

Noxesium adds a number of extra features only accessible for server developers. This lets them bypass some vanilla restrictions and make better content.

Here’s a list of things Noxesium lets servers do: - Create custom interactables on the client like speed boosters or jump pads - Play custom sounds and control various properties, including a start offset, changing the volume over time, resuming playing the sound and starting anchored to a UNIX timestamp - Draw player heads in text messages - Draw text with any x/y offset to its position - Tweak the behavior of riptide tridents to make them more usable in multiplayer games - Prevent moving items in GUIs - Locking camera movement

🏝️ MCC Island Integration

Noxesium has extra features to integrate with MCC Island directly! MCC Island detects any user running Noxesium and sends the client extra information on your current location and game state. This allows other mods like Island Utils to use this information for its custom features.