
Osmium PvP
A high-performance, minimalist PvP overhaul focused on fluid combat, extreme FPS optimization, and competitive utility.
Screenshots

About this Modpack
🛡️ Osmium PVP
The Ultimate Performance-Driven PvP Experience for Minecraft 1.21.x
Osmium PVP is a lightweight, high-performance modpack designed specifically for competitive players. Built on the Fabric loader, it combines industry-leading optimization with essential PvP utilities to give you the smoothest frames and the fastest reactions.
⚡ Key Features
🚀 Extreme Performance
- Sodium & Lithium: The gold standard for engine optimization.
- ImmediatelyFast & FerriteCore: Reduced memory usage and faster font/packet rendering.
- Entity Culling & More Culling: Don't waste frames on things you can't see.
- Krypton: Optimized network stack to reduce "ghost hits" and lag spikes.
⚔️ Competitive Edge
- Marlow's Crystal Optimizer: Smooth, responsive crystal placements for 1.21 combat.
- Auto Totem+: Reliable safety for high-stakes encounters.
- InventoryHUD+: Keep track of your armor, potions, and inventory without opening a menu.
- Freelook: 360-degree perspective while running or flying.
🎨 Visuals & Customization
- 3D Skin Layers & Skin Shuffle: Aesthetic upgrades that make you and your teammates look great without sacrificing FPS.
- Amazing Mace 3D: Fully rendered 3D models for the newest 1.21 weapons.
- Continuity: Full support for connected textures (glass/sand).
- Spunky PVP Texture Pack: Built-in textures optimized for visibility and clean combat.
🛠️ Included Mod Highlights
| Category | Featured Mods |
|---|---|
| FPS Boost | Sodium, Sodium Extra, Reese's Sodium Options |
| HUD/UI | Mod Menu, AppleSkin, InventoryHUD+ |
| Combat | Crystal Optimizer, Auto Totem+, Freecam |
| Visuals | ETF, EMF, 3D Skin Layers, Continuity |
⚙️ Requirements & Recommendations
- Loader: Fabric
- Minecraft Version: 1.21.10 (Compatible with 1.21.x)
- RAM: 2GB - 4GB is plenty for this pack.
Available Versions
How to Set Up a Osmium PvP Server
Order Server
Choose at least 4 GB RAM (6 GB recommended for Osmium PvP). Based on player count: per 8 players.
Install Modpack in Dashboard
Open the modpack browser in the dashboard, search for "Osmium PvP" and click "Install". The fabric loader and Minecraft 1.21.11 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
Osmium PvP 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 Osmium PvP 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 Osmium PvP 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.
Osmium PvP 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.
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Supported Versions
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