Now, Meet Celerium: Reshaped!

Minecraft, but more refined. Designed for Fabric 1.21.11. Updates will prioritize stability over speed.

Overview

This modpack revolves around one idea: a pack that focuses on performance, stability, and improvements that feel like they belong in the game. The result is a modern Fabric experience that stays true to vanilla, while quietly fixing what vanilla leaves behind.

What makes it different

Most modpacks try to do more. This one focuses on doing less, better.

• No feature bloat
• No overlapping mods
• No intrusive UI changes
• No unnecessary mechanics

Every mod exists for a reason, and if two mods solve the same problem, only the best one stays.

Choose Your Experience

Celerium is available in three variants. Each one is built on the same foundation — the difference is how much is added on top.

CORE — Full Experience

• All 41 mods active
• Balanced configuration for performance + usability
• Includes QoL, HUD, and visual improvements

Best for: Most players. This is the intended Celerium experience.

LITE — Performance Focused

• Same mod list as CORE
• Configurations tuned for lower-end hardware
• Reduced visual intensity and background load

Best for: Older PCs or players who want smoother performance without losing features.

MINIMAL — Vanilla-Like

• Only essential mods
• No QoL, HUD, or visual extras
• Clean, lightweight, near-vanilla feel

Best for: Players who want maximum performance or a mostly vanilla experience with essential improvements.

Important

All versions share the same core optimizations and stability improvements.

MINIMAL removes convenience features — not the underlying performance foundation.

Structure

The pack is organized into clearly defined layers:

• Core
  • Fundamental systems and APIs that shape the experience
  • Performance
    • Engine-level optimizations to ensure smooth gameplay on modern systems
  • Stability & Fixes
    • Bug fixes, crash prevention, and vanilla corrections
  • Essential Quality of Life
    • Subtle improvements that feel like they should already be part of Minecraft
  • Libraries
    • Required dependencies that keep everything running cleanly behind the scenes

Optional Content

Additional features are provided as modular extensions, so you can customize your experience without affecting the core design:

• Visual Enhancements
  • Improved visuals that respect Minecraft’s original style
  • Quality of Life (Extended)
    • Extra conveniences for players who want more flexibility
  • Shader Support
    • Optional compatibility for shader-based rendering

Said optional mods not available in the minimal edition.

These are entirely optional — the base pack is designed to feel complete on its own.

The Goal

To provide a version of Minecraft that feels:

• Smoother
• Cleaner
• More consistent
• More complete

Without ever feeling like something else.

Mod List

Celerium is built with a clear philosophy: performance first, stability always, features where they matter.

Performance & Optimization

Core improvements to FPS, memory usage, and general game efficiency.

Core Libraries & Dependencies

Required mods that power other features. These are not meant to be used standalone.

Quality of Life & UI

Improves usability, information visibility, and general convenience.

Visual Enhancements

Optional visual improvements that enhance immersion without major performance cost.

Gameplay & Mechanics

Mods that subtly adjust or improve game behavior.

All mods belong to their respective creators. Huge thanks to the Fabric modding community.

Version Differences

MINIMAL removes convenience features — not the performance foundation. All versions share the same optimization and stability core.

Important information

For any troubleshooting, getting more information and support regarding any problems, you can check the documentation, if you troubleshoot but still have some problems you can open an issue on the github page.