
Diamon's Selfpack
A colossal 450+ mod kitchen-sink for 1.20.1. Features BWG & Alex‘s Caves world gen, YUNG‘s dungeons, Create automation, Better Combat, iron's magic, delightful farming, mobs, & optimizations.
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About this Modpack
Diamon's SelfPack
A Colossal 470+ Mod Kitchen-Sink for 1.20.1 | A Sandbox with Character

This is not a pack for weak PCs or a quick playthrough. It's a meticulously assembled, living world for Forge 1.20.1, where every mod is part of a greater ecosystem. Deep RPG, engineering creativity, and survival in a dangerous world are all woven together. We've spent hundreds of hours making the incompatible work together (just look at Simply Skills), so you get a ready-made epic sandbox.
🎭 The Two Sides of the Pack
| 🌟 Strengths (What It's Praised For) | ⚠️ Considerations (What Requires Understanding) |
|---|---|
| Unbounded Depth: Full-fledged RPG skills (Simply Skills), magic (Iron's Spells), technology (Create + 40 addons), and exploration in one pack. | Demanding on Resources: This is 470+ mods. It will not launch with less than 8 GB of allocated RAM. For comfort with shaders, 12 GB and a GPU like a GTX 1660 / RX 6600 are recommended. |
| A World Worth Exploring: Landscapes by Terralith & BWG, eerie Alex's Caves, hellish Incendium, and dozens of unique dungeons (YUNG's, Cataclysm). | Not Perfectly Optimized: Despite Embeddium and ModernFix, FPS will dip in the densest forests or caves. This is the trade-off for scale. |
| Stability Within Chaos: The pack is tested. Version 7.0.1 is the result of fixing bugs and lag from past releases (avoid 5.0.0). | Complex for Beginners: There's no built-in quest mod. You set your own goals: become a mage, an engineer, or a dragon hunter. |
| Full Integration: Even complex dependency chains (like those for Simply Skills) work out of the box. |
📊 Detailed Mod Breakdown
Here is the core framework of the pack. This is not a complete list, but it shows its scope.
| Category | Core Mods & Notes |
|---|---|
| 🌍 World Generation | Terralith (pre-7.0) / Oh The Biomes You'll Go, Incendium (Nether), Nullscape (End), Alex's Caves. The foundation for exploration. |
| ⚔️ Combat & Adventure | Better Combat, ParCool! (movement), Ender Dragon Fight Remastered. Cataclysm & Integrated Dungeons for brutal bosses. YUNG's full suite (Better Dungeons, Temples, etc.) for perfected vanilla-like structures. |
| 👨🔧 Technology & Automation | Create and its massive ecosystem (New Age, Enchantment Industry, Steam 'n' Rails +35 others). Immersive Engineering, Applied Energistics 2 for complex logistics. |
| 🧙 RPG, Magic & Mobs | Simply Skills – the complete skill tree system with all its dependencies (Pufferfish's Skills/Attributes, etc.). Iron's Spells 'n Spellbooks, Spell Engine for arcane arts. Ice and Fire (dragons), Alex's Mobs, Mowzie's Mobs for a living world. |
| 🍳 Food & Immersion | Farmer's Delight and all its dimension addons (Nether's, End's, etc.). Create: Food & Bakery, Let's Do (Vinery, Bakery) for automation. Sophisticated Backpacks, Recolorful Containers (v7.0+). |
| 🔧 Optimization & Interface | Embeddium (Sodium for Forge), ModernFix, Radium (Canary/Lithium), Entity Culling, Fastload. EMI (item browsing), Jade (block info), Spark for profiling. |
⚙️ Performance & Real Talk
The pack can be laggy.
- We are honest about this. With 470 mods, perfect optimization is a myth.
- The main culprits (based on in-depth
sparkprofiling) are usually aggressive mob spawns (like Artifacts mimics) and Java's Garbage Collector under load. - What we've done: Pre-configured performance mods and carefully balanced spawns where possible.
- What you can do: Allocate 10-12 GB of RAM, use the Modrinth App for installation, and join our Discord for community-tuned configs and launch arguments that help mitigate lag spikes.
🚀 Getting Started
- Use the Modrinth App. It's the simplest way to install and manage the pack and its dependencies.
- Allocate RAM correctly: Set 10-12 GB (e.g.,
-Xmx10G) in your launcher before first launch. - Join our community: For support, shared configurations, and showcases: https://discord.gg/7ZACpYe4.
- Choose your own path. The sandbox is yours.
Description crafted with AI assistance. The pack is a grand, ambitious project that can be laggy in dense areas but offers an unmatched scale of content for those with the hardware to support it.
Available Versions
How to Set Up a Diamon's Selfpack Server
Order Server
Choose at least 6 GB RAM (10 GB recommended for Diamon's Selfpack). Based on player count: per 4 players.
Install Modpack in Dashboard
Open the modpack browser in the dashboard, search for "Diamon's Selfpack" and click "Install". The forge loader and Minecraft 1.20.1 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
Diamon's Selfpack server crashes or won't start – what to do?
Most common causes: insufficient RAM or wrong forge loader. Check latest.log for "OutOfMemoryError" → increase RAM to at least 10 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 Diamon's Selfpack server really need?
Minimum 6 GB, recommended 10 GB for stable performance. per 4 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 Diamon's Selfpack without conflicts?
Yes, but check compatibility: only use mods for the same loader (forge) and same Minecraft version (1.20.1). 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.
Diamon's Selfpack server lagging – performance tips
1) Increase RAM to 10 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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