OptTux
A modpack for older, lower-end, Wayland-using, and NVIDIA-based (Linux) PCs and laptops
About this Modpack
OptTux (Optimized + Tux) is a modpack specifically made for gamers who want to play with useful vanilla extending mods that work on vanilla servers, but also optimize for users on older or lower-end computers.
This project is a work in progress. I'm also working on optimizing it for Linux computers running Wayland, and NVIDIA-based (with proprietary drivers) Linux computers.
Currently, I only tested it on my Thinkpad T15 Gen 1 and Acer Chromebook 314 (running Arch Linux), but it should technically work on most of the computers.

Available Versions
How to Set Up a OptTux Server
Order Server
Choose at least 4 GB RAM (6 GB recommended for OptTux). Based on player count: per 8 players.
Install Modpack in Dashboard
Open the modpack browser in the dashboard, search for "OptTux" and click "Install". The fabric loader and Minecraft 1.20.4 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
OptTux 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 OptTux 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 OptTux without conflicts?
Yes, but check compatibility: only use mods for the same loader (fabric) and same Minecraft version (1.20.4). 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.
OptTux 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.
Similar Modpacks
Rent OptTux Server
Start your own server with automatic modpack installation.
Details
- License
- BSD 3-Clause "New" or "Revised" License
- Server-side
- Unsupported
- Client-side
- Required
Supported Versions
Start your OptTux Server now
From €8.00/month with 6 GB RAM for the best performance.
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