VLib

VLib

A utility lib for Valkyrien Skies addons.

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281.5K Downloads
fabricforgelibraryutility
Rent Server with this Mod

About this Mod

VLib is a library mod for Valkyrien Skies that provides many utilities for players, modpack makers, and mod developers.

For Players / Modpack Makers

  • VS Player Collision Bug Fix: Going through tight vertical spaces such as trapdoors on ships will now behave as expected when the ship is rotated.
  • Automatic Modded Block Mass Calculation: run /vlib generateMasses and VLib will calculate block mass estimates for all modded blocks. It will save the masses and bundle them into a jar file in your mods folder
  • Assembly Stick: Right click on a build to instantly assemble it as a ship! (NOTE: this feature is currently incompatible with C2ME)
  • Per-Dimension Ship Gravity: Allows you to set the default ship gravity per dimension with a datapack
  • Per-Dimension Ship Scale: Allows you to set the default ship scaling per dimension with a datapack

For Developers

  • Data driven features for setting MC (or datapack) structures to generate as ships
  • VLibGameUtils provides functions for assembly (with or without blacklist), and getting and saving ship structure templates.
  • DimensionSettingsManager allows you to query or set default ship gravity and scale per dimension (via code or datapack)

More detailed information can be found on the the wiki.

Available Versions

VLib 1.20.1-0.1.1beta
MC 1.20.1forge
December 25, 2025
VLib 1.20.1-0.1.1beta
MC 1.20.1fabric
December 25, 2025
VLib 1.20.1-0.1.0 Forgebeta
MC 1.20.1forge
November 22, 2025
VLib 1.20.1-0.1.0 Fabricbeta
MC 1.20.1fabric
November 22, 2025
VLib 1.20.1-0.0.15-alpha+forgealpha
MC 1.20.1forge
October 12, 2025

How to Install VLib on Your Server

1

Order Server

Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).

2

Set fabric Loader

In the panel under "Egg", select the fabric loader and matching Minecraft version (1.20.1).

3

Install Mod

Open the mod browser in the dashboard and search for "VLib". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.

Compatibility

Mod Loaders

fabricforge

Minecraft Versions

1.20.1

Server-side

Required

Recommended RAM

4 GB(min. 3 GB)

Frequently Asked Questions

VLib 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 (1.20.1). You can switch loaders with one click in the panel.

Is VLib compatible with fabric and forge?

VLib officially supports fabric, forge for Minecraft 1.20.1. Note: Forge and Fabric mods are NOT cross-compatible – pick one loader and stick with it. The Mado dashboard automatically detects incompatible loader combinations.

Server lagging with VLib – how to optimize performance?

Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if VLib 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.

Rent Modded Server

Install VLib with just one click on your server.

Recommended RAM
4 GBfrom €5.2/mo
Minimum 3 GB | per 8 players
Create Server Now
1-Click Mod Install
NVMe SSD Storage
DDoS Protection included

Details

License
Apache License 2.0
Server-side
Required

Supported Versions

1.20.1