Truly Lightweight

Name: Truly Lightweight
Price: 8 EUR
Author: K0nanVarvar

A really lightweight modpack, that is really optimized as well

by K0nanVarvar

76 Downloads

0 Followers

fabricMC 1.21.5lightweight

Rent Truly Lightweight Server

Screenshots

About this Modpack

Truly lightweight focuses on being really lightweight, for example latest version of modpack has only 11 mods, but don't underestimate the performance of the modpack! it includes the basic optimization mods and is a great modpack that you can mod

Truly lightweight also includes iris shaders so that you can add your favourite shader
in 1 click or just not use one at all!
and the modpack has mod menu preinstalled so you can configure mods easily

Mods Included

Sodium

https://modrinth.com/mod/sodium

Performance mod that boosts performance A LOT!

ScalableLux

https://modrinth.com/mod/scalablelux

Mod based on Starlight that improves the performance of light updates

Model Gap Fix

https://modrinth.com/mod/modelfix

Fixes gaps at the edges of models

Lithium

https://modrinth.com/mod/lithium

General-purpose optimization mod

FerriteCore

https://modrinth.com/mod/ferrite-core

Reduces the memory usage of Minecraft

Entity Culling

https://modrinth.com/mod/entityculling

Hides entities and block entities that are not visible

Concurrent Chunk Management

https://modrinth.com/mod/c2me-fabric

Designed to improve the chunk performance of Minecraft

Modpack also includes other mods like mod menu and iris shaders

Available Versions

Truly Lightweight 1.0.0release

MC 1.21.5fabric76 downloads

September 10, 2025

How to Set Up a Truly Lightweight Server

Order Server

Choose at least 4 GB RAM (6 GB recommended for Truly Lightweight). Based on player count: per 8 players.

Install Modpack in Dashboard

Open the modpack browser in the dashboard, search for "Truly Lightweight" and click "Install". The fabric loader and Minecraft 1.21.5 are configured automatically.

Start Server & Play

Start the server – all mods are loaded automatically. Share the server IP with friends and play together!

Frequently Asked Questions

Truly Lightweight server crashes or won't start – what to do?

Most common causes: insufficient RAM or wrong fabric loader. Check latest.log for "OutOfMemoryError" → increase RAM to at least 6 GB. For "Mixin" or "ClassNotFoundException" errors: modpack version and loader don't match. With Mado Hosting, loader and Minecraft version are auto-configured on modpack install – preventing most startup issues.

How much RAM does a Truly Lightweight server really need?

Minimum 4 GB, recommended 6 GB for stable performance. per 8 players. Important: Minecraft modpacks need more RAM than vanilla – plan extra per additional player. With Mado Hosting, you can scale RAM up live at any time without data loss (from €8/month).

Can I add custom mods to Truly Lightweight without conflicts?

Yes, but check compatibility: only use mods for the same loader (fabric) and same Minecraft version (1.21.5). Common issues: ID conflicts with recipe mods and incompatible coremod versions. The Mado dashboard mod browser only shows compatible mods and warns about known conflicts.

Truly Lightweight server lagging – performance tips

1) Increase RAM to 6 GB+. 2) Reduce server view-distance to 8 (server.properties). 3) Pre-generate chunks with the "Chunky" plugin. 4) Use /spark profiler to check which mods consume the most tick time. With Mado Hosting, all servers run on NVMe SSDs with dedicated CPU cores – eliminating hardware as a bottleneck.