
Noxesium is mod for Fabric which improves your experience when playing on multiplayer servers by giving the server more control over the client and fixing bugs that affect multiplayer gameplay.
Noxesium contains a variety of different features for different users, most are configurable or controlled by the server.


Noxesium adds a number of extra features to the client which server developers can use in their experiences. This lets them bypass some vanilla restrictions and make better content.
Here's a list of things Noxesium currently lets servers do:
- Create custom interactables on the client like speed boosters or jump pads
- Move authority of riptide tridents, elytras, or lunge spears to the client which makes them act identically regardless of ping
- Move authority of arrow behavior or note block/tripwire block updates to the server only
- Play custom sounds and control various properties, including a start offset, changing the volume over time, and resuming playing the sound
- Draw player heads in text messages with an offset to the position or at different scales
- Draw text with any x/y offset to its position
- Prevent moving items in GUIs, adding hover sounds to items, changing slot sprites when hovered
- Locking camera movements, restrict GUI rescaling, restrict using various debug features such as hitboxes or debug renderers, or hiding the UI through F1
- Tweaking the hitbox size of entities (including non-square hitboxes) or making entities unattackable
- Change the heights of beacon beams
- Detect mouse clicks directly regardless of which interactions occurred after
- Receive additional information on the client's GUI scale and window size to better align custom UIs
- Change the FOV or current zoom of the client
- Open a pop-up to visit a URL in their browser
- Add a custom creative item tab with custom items/blocks from your server
Server developers can use the server API plugin for Paper available here to interact with these features either through code or through in-game commands!
Noxesium can be easily extended by other mods and plugins. This lets developers implement their own features for their projects, and contribute these back to the main mod so it works on all clients. For server developers, there's also a lightweight bundled packet injection API.
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 and Trident to use this information for its custom features.
Noxesium is directly developed by Noxcrew, creators of MC Championship and MCC Island, as a result Noxesium focusses on improving the experience for users of those projects.
Noxesium is also automatically included on some versions of Lunar Client.
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14.08.2026 · Modrinth
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Опубликованные версии и оригинальные файлы Modrinth.
14.08.2026 · 26 700 загрузки
13.07.2026 · 32 526 загрузки
This is a bugfix update for the 26.1 version of Noxesium to fix an incompatibility with Sodium 0.9.
20.06.2026 · 120 048 загрузки
16.06.2026 · 2 525 загрузки
02.05.2026 · 48 412 загрузки
11.01.2026 · 348 500 загрузки
It’s time for the biggest update to Noxesium in years, and there won’t be one like this for a while.
With this update Noxesium is reassessing its identity as various features have been added and removed over the years. There’s been features for developers, performance optimizations, and vanilla bugfixes, but some have been removed again with time and as Minecraft has evolved over the years.
With this v3 version Noxesium is embracing a clearer identity: Noxesium is a mod meant to help server developers improve the experience of their players when playing on their servers.
But what does that mean?
Base Noxesium contains features for everyone, but everyone should be able to make their own custom features without having to build an API to sync them with the client. Therefore, as of Noxesium v3 all functionality has been turned into APIs and you can create your own extensions mods built on top of Noxesium.
In addition to a client API, there is now an extensive and complete server API for Noxesium. As much code as possible is written entirely standalone and can be implemented on other platforms such as NeoForge, Minestom, etc. The main client mod will only be on Fabric and the main server API will be on Paper. This server API now comes out of the box with everything you need:
The server API is available through Noxcrew's public maven repository or as a downloadable plugin jar on the GitHub page, as it's a developer tool no download is made available here.
server_authoritative_block_updates which prevents the client from updating note block and tripwire block states. (#145) by @ImBitgui_constraints which lets the server limit which GUI elements can have which sizes.client_authoritative_elytra which makes elytra usage entirely client-sided.elytra_coyote_time which lets you configure a delay in ticks before the elytra is disabled when landing to allow for consistent elytra hopping.restrict_debug_options now supports disabling F1 to hide the UI.client_authoritative_riptide_trident which enables the custom riptide trident. (renamed from old name)hover_sound for adding a sound when hovering the item. (#139) by @LukynkaCZEhoverable for adding custom sprites when hovering the slot.qib_behavior for creating custom items that trigger movement effects like vanilla’s new spear with the Lunge enchantment. This lets you create client-side authoritative lunge spears.hitbox_override for changing the size of any entity’s hitbox. (replaces previous interaction entity z width override)hitbox_color for changing the color of an entity’s hitbox in F3+B.attackable for making entities unattackable completely, having no particles or sounds.beacon_beam_height for setting the height of a beacon’s beam.ApplyImpulse which applies motion to the player similar to the lunge enchantment effect.StartGliding which makes the player enter gliding mode.StopGliding which makes the player exit gliding mode.Conditional now supports IS_IN_VEHICLE checks.ServerboundMouseButtonClickPacket is sent whenever the mouse buttons are used. (#138) by @IrisufusServerboundQibTriggeredPacket now has an ATTACKtrigger type.ServerboundGlidePacket is sent when the client starts gliding with the client-authoritative elytra.ClientboundGlidePacket which can be sent to the client to override its current gliding state regardless of if they are able to.Then, here are all the new technical features, these only matter if you are a developer using Noxesium in your codebase:
27.12.2025 · 20 643 загрузки
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11.10.2025 · 68 511 загрузки
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13.12.2024 · 75 912 загрузки
Notice: Major internal changes have been made to support NeoForge in future versions of Noxesium. Other mods that depend on Noxesium may have broken. Published jars will now also include either a -fabric or -neoforge tag. Currently, NeoForge builds are not yet available.
05.11.2024 · 115 497 загрузки
03.10.2024 · 833 757 загрузки
25.09.2024 · 13 434 загрузки
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21.07.2024 · 18 870 загрузки
This update makes various changes to the map UI setting added in the last update. This is a setting which renders a map held in the off-hand as a UI element to improve visibility.
16.07.2024 · 4 818 загрузки
New features:
- Added a new system for setting extra entity data on specific entities. This currently has three usages:
- Servers can now customise the color and transparency of guardian beams.
- Servers can now turn off bubble particles on guardian beams.
- Servers can assign custom behaviors (see below) to interaction entities to trigger effects.
- Noxesium now automatically fixes some rare chunk rendering issues in Hole in the Wall on MCC. These are manually fixable by disabling "always defer chunk updates" but the server can now enable this behavior when needed.
- Added accessibility setting to show maps in the top right/left corner instead of the player's hand. Can be force enabled by a server.
- Added ability to show a small UI element that shows the current game time. This is specifically meant for shader developers and not for general users.
- Added hidden configuration option to dump incoming/outgoing packets. Plan is to add a developer focussed config menu in the future for settings like this.
- Servers can now add a custom flag to an item to render its model following the minecraft:block_state information. This e.g. allows creating glazed terracotta items that show up as rotated in their item form.
- Servers can now define one custom creative tab they can fill with custom blocks/items they have created through tripwire, note blocks, or something else. Combined with the previous feature this can be used to correctly render such models in the inventory.
- Added hidden setting to print packet exceptions to the logs.
- Server connection is now re-initialized after leaving the configuration phase which fixes issues with Noxesium server-side integration on most multi-server networks.
- Added a new system called qibs, this is a system for creating areas that trigger effects on entry such as jump pads in Ace Race. This system allows such areas to be defined on the client directly. This system is still in beta and will likely receive breaking changes in future releases.
General:
- Updated to 1.21!
- Added French translations (#66, #81) by @TheFox580
- Added Hungarian translations (#67, #78, #79) by @CraftisMineHun
- Added Traditional Chinese translations (#71, #83) by @yichifauzi
- Added Russian translations (#72, #80) by @pe3ep
- Added German translations (#77) by @derNiklaas
- Added Thai translations (#84) by @duechayapolgmit
- Fixed an error when using custom sounds (#85) by @AsoDesu
- Experimental performance improvements have been temporarily disabled. They are being reworked to focus on important improvements without causing major incompatibility issues with every other mod.
- Old performance changes to item rendering & beacon rendering have been dropped. They barely affected performance and caused incompatibility with other mods.
22.05.2024 · 32 192 загрузки
07.05.2024 · 240 214 загрузки
27.04.2024 · 144 022 загрузки
25.04.2024 · 1 569 загрузки
17.12.2023 · 307 078 загрузки
27.11.2023 · 47 188 загрузки
This release features new performance improvements for UI rendering. These changes are highly experimental and not enabled by default.
Currently these changes can improve fps by 2-3x on MCC Island. Users that already have high framerates will experience a larger benefit from these optimizations.
If Cloth Config API is installed you can find a configuration panel in the mods list, here you can enable these experimental performance improvements. After you have enabled the configuration setting you can use F3+W to toggle the optimizations on/off for quick comparisons and testing. Feel free to report any bugs caused by these experimental changes to help move them to a more stable spot.
These changes will have compatibility issues with other mods or heavily customised servers due to the nature of the optimizations. Please report these issues! These changes won't become enabled by default until they are sufficiently stable and have been thoroughly tested.
10.10.2023 · 31 975 загрузки
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14.08.2023 · 10 855 загрузки
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10.09.2022 · 2 479 загрузки
Initial release