
Vextrek's 1.21.1 Prefs
New Features, Massive Increase to Visuals and Performance - 120 Mods!
About this Modpack
I use this mod list for personal playthroughs, and I thought I'd share with others. This is an overhaul of the Minecraft experience with new features and a massive increase to visuals and performance. For a list of included mods (120 of them!), check out the dependency list in the version info.
Disclaimers
There are mods in this pack that are not suitable for a public multiplayer experience, so do not use those mods in that environment. What happens to you is not my responsibility, so use discretion for when to play with this modpack.
I do not offer support. Do not ask me for assistance. This modpack is "as is."
All credit goes to the respective mod creators. Thank you all for the amazing work that we get to enjoy! If you want to donate as a thank-you, those mod creators would appreciate it.
Available Versions
How to Set Up a Vextrek's 1.21.1 Prefs Server
Order Server
Choose at least 6 GB RAM (8 GB recommended for Vextrek's 1.21.1 Prefs). Based on player count: per 5 players.
Install Modpack in Dashboard
Open the modpack browser in the dashboard, search for "Vextrek's 1.21.1 Prefs" and click "Install". The fabric loader and Minecraft 1.21.1 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
Vextrek's 1.21.1 Prefs 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 8 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 Vextrek's 1.21.1 Prefs server really need?
Minimum 6 GB, recommended 8 GB for stable performance. per 5 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 €12/month).
Can I add custom mods to Vextrek's 1.21.1 Prefs without conflicts?
Yes, but check compatibility: only use mods for the same loader (fabric) and same Minecraft version (1.21.1). 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.
Vextrek's 1.21.1 Prefs server lagging – performance tips
1) Increase RAM to 8 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.
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Supported Versions
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