JustPack

JustPack

Vanilla build for playing Minecraft on version 1.21.11

by PeemKay
293 Downloads
0 Followers
fabricMC 1.21.11lightweightmultiplayeroptimization

Screenshots

Main menu

About this Modpack

RUS
Модпак для игры на ванильных сервераx
Отличный модпак для игры на ванильных серверах, поддерживающий все функции, которые есть в OptiFine, позволяет использовать текстуры предметов и мобов, а также содержит в себе отличную оптимизацию и визуальные!

Кастомный ресурспак для модпака ТЫК (only 1.21.4)


ENG
Modpack for playing on vanilla servers
An excellent modpack for playing on vanilla servers, supporting all the features that are in OptiFine, allows you to use textures of items and mobs, and also contains excellent optimization and visuals!

Custom resource pack for modpack Click

Main menu (only 1.21.4)

Available Versions

JustPack 1.0.9.2release
MC 1.21.11fabric26 downloads
March 15, 2026
JustPack 1.0.9.1release
MC 1.21.11fabric12 downloads
March 13, 2026
JustPack 1.0.9release
MC 1.21.11fabric8 downloads
March 11, 2026
JustPack 1.0.8.3release
MC 1.21.8fabric25 downloads
January 2, 2026
JustPack 1.0.8.2release
MC 1.21.8fabric34 downloads
November 1, 2025

How to Set Up a JustPack Server

1

Order Server

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

2

Install Modpack in Dashboard

Open the modpack browser in the dashboard, search for "JustPack" and click "Install". The fabric loader and Minecraft 1.21.11 are configured automatically.

3

Start Server & Play

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

Frequently Asked Questions

JustPack 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 JustPack 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 JustPack without conflicts?

Yes, but check compatibility: only use mods for the same loader (fabric) and same Minecraft version (1.21.11). 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.

JustPack 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.

Rent JustPack Server

Start your own server with automatic modpack installation.

Recommended RAM:
6 GB(min. 4 GB)
From 8.00 / month
Create Server Now
1-Click Modpack Install
NVMe SSD Storage
DDoS Protection included
Automatic Backups

Details

License
LicenseRef-All-Rights-Reserved
Server-side
Unsupported
Client-side
Required

Supported Versions

1.21.111.21.81.21.71.21.5

Start your JustPack Server now

From €8.00/month with 6 GB RAM for the best performance.

Configure Server →