
Qubit Player XP
A tiny, configurable mod intended for use in modpacks. Allows for configuration of the XP leveling and XP drop on death formulas.
About this Mod
Usage
By default, this mod should change nothing.
It can be configured with a file at <mc folder>/config/qubit/player_xp.json
Its configuration has this format (this is not the default configuration):
{
// Controls how much XP is needed for each level.
// An array of pieces that forms a piecewise linear function.
// The function's input is your *current* level.
// Defaults to vanilla's formula if not provided.
// One piece needs to start at 0.
"level_formula": [
// Each piece has this format:
{
// What level this piece starts at, default 0. Must be >=0.
"start": 0,
// The value at the starting level (not the y-intercept). Must be >0.
"constant": 7,
// Additional XP required for each level afterward, default 0.
// Must be >=0, can be a float.
"slope": 2
}
],
// Controls how much XP is dropped on death.
// Defaults to vanilla's formula if not provided.
"xp_drop": {
// A formula with the same format as `level_formula`.
// Controls the amount that drops for each level.
"formula": [ /* ... */ ],
// How much of the progress toward the next level is dropped.
// Progress is a fraction of the amount for the next level in `formula`.
// It is *not* based on the actual amount of XP the next level requires.
// Must be at least 0.
"extra_mult": 1.0,
// The maximum XP that will be dropped. Must be at least 0.
// If omitted, there is no cap (except the integer limit).
"cap": 100
}
}
Available Versions
How to Install Qubit Player XP on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set fabric Loader
In the panel under "Egg", select the fabric loader and matching Minecraft version (26.1.2).
Install Mod
Open the mod browser in the dashboard and search for "Qubit Player XP". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
26.1.2
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Qubit Player XP server crashes on startup – what to do?
Most common cause: wrong fabric version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (26.1.2). You can switch loaders with one click in the panel.
Is Qubit Player XP compatible with fabric?
Qubit Player XP officially supports fabric for Minecraft 26.1.2. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Qubit Player XP – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Qubit Player XP consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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Rent Modded Server
Install Qubit Player XP with just one click on your server.