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Minecraft: Java Edition
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๐ก๏ธ Slairian SMP Core
Your next long-term Minecraft home.
Slairian SMP Core is a feature-rich, high-performance Modrinth modpack built specifically for the Slairian SMP, now running natively on NeoForge 1.21.1. Say goodbye to short-lived worlds, laggy servers, and repetitive vanilla survivalโthis pack gives you a deeply immersive, polished, and optimized world engineered for endless exploration, mechanical engineering, custom transport, and community building.
๐ Why Join the Slairian SMP?
Most SMPs lose their spark after a few weeks. The Slairian SMP was built from the ground up by Captain.J.Slair to create a world where your projects matter, your builds stay safe, and survival actually stays challenging.
By combining cutting-edge performance mods with deep environmental survival, dynamic seasons, industrial automation, custom vehicles, and high-speed logistics, this pack turns Minecraft into an evolving world you can play on for months and years without running out of things to do.
๐ Core Features
๐ Environmental Survival & Seasons
Survival isn't just about punching trees and hiding at night anymore:
- Changing Seasons: Experience vibrant autumn foliage, heavy winter blizzards, blooming spring flowers, and scorching summer heat powered by Serene Seasons & Serene Seasons Plus.
- Temperature & Thirst: Scorchful, Frostiful, and Thirst Was Taken force you to adapt! Pack water canteens, drink purified water, wear warm gear for snow-capped peaks, and manage body heat when exploring extreme climates or the Nether.
โ๏ธ Machinery, Vehicles & Pneumatics
Build kinetic machinery, flying airships, and high-speed transit networks:
- Create Mod Ecosystem: Automate resource gathering, build complex kinetic contraptions, and process materials with rotational force.
- Pneumatic Logistics: Harness compressed air with Create Numeratics to power high-speed item transit, backtank tools, and utility systems.
- Airships & Vehicles: Construct flying airships and kinetic vehicles right in your world using Create Aeronautics (alongside experimental land vehicle setups).
๐ซ Tactical Combat & Firearms
Upgrade your arsenal with modern tactical combat:
- TacZ (Timeless and Classics Zero): Brings realistic shooting physics, fully animated reloads, weapon inspection modes, and deep attachment customization to survival combat.
๐๏ธ World Generation & Travel
Never run out of places to explore or incredible locations to build your base:
- Overhauled Biomes: Discover dozens of new terrain types, vibrant trees, and unique foliage across the world with Biomes O' Plenty and TerraBlender.
- Reworked Settlements: Explore sprawling new villages, pillager strongholds, and ancient ruins with Towns and Towers.
- Fast Travel & Storage: Pack your gear into craftable Traveler's Backpacks (complete with sleeping bags and liquid tanks) and set up network hubs across the world using Waystones.
๐๏ธ Immersion & Quality of Life
- 3D Voice Chat: Talk naturally with nearby players using Simple Voice Chat with distance falloff, directional audio, and custom group channels.
- Realistic Acoustics: Sound Physics Remastered makes cave echoes ring out and wall muffling sound realistic.
- Casual Hanging Out: Sit down on chairs, slabs, and ledges with Sit to hang out at spawn or chat around the campfire.
- In-Game Recipes: Integrated Roughly Enough Items (REI) lets you look up crafting recipes, uses, and brewing formulas instantly.
โก Shaders & Visuals
- Native Shader Support: Powered natively by Sodium & Iris (NeoForge) for massive FPS boosts, smooth chunk loading, and built-in shader engine support even around massive Create factories.
- Resourcify: Search, install, and swap shaders or resource packs directly from the main menu!
โ FAQ
Q: Is this pack required to join the Slairian SMP server?
A: Yes! Downloading the client modpack ensures your launcher is 100% synced with the server's voice chat, custom structure generation, season mechanics, gun code, and survival HUDs without crashing.
Q: Can I run shaders with this modpack?
A: Absolutely! Thanks to Sodium + Iris, you can run shaders smoothly. Open Resourcify in the main menu to download and switch shaders instantly!
Q: How do I talk to other players using proximity voice chat?
A: Press
Vin-game to open the voice chat settings, test your mic, and adjust player volumes.
๐ฅ Credits & Community
- Pack Lead & Server Manager: Captain.J.Slair
- Community: Shoutout to all players and builders making the Slairian SMP an amazing place to play!
- Mod Developers: Infinite credit to all open-source mod creators whose work makes this pack possible.


