The End of an Era
Let's bring Minecraft's golden era (1.20.1 & 1.21.1) to perfection.
The End of an Era

It is currently under active development
Just another optimization modpack — nothing special. The base versions of the modpack were developed for Connector, which have been ported to Connector *(thanks to Connector)*.
We use only effective mods to optimize the client
**Achievement Optimizer** — optimizes how item-based achievements and advancements are processed. **Clumps** — groups EXP orbs together into a single entity to reduce lag when there are many in a small area. **Concurrent Chunk Management Engine** — designed to improve the performance of chunk generation. **Dynamic FPS** — reduce resources usage while Minecraft is in the background, idle, or on battery. **Enhanced Block Entities** — reduce block entity FPS lag with almost no compromises. **Entity Culling** — calculates line-of-sight visibility in real time and eliminates unnecessary draw calls. **Fast Noise** — optimizes storing block and biome data into chunks for the duration of worldgen. **Fast Quit** — lets you return to the title screen early while your world is still saving in the background. **Ferrite Core** — optimizes and reduces Minecraft's memory usage in a few different ways. **Get It Together, Drops!** — controls how dropped items combine on the ground to reduce lag. **Immediately Fast** — improves rendering performance of the client's immediate mode. **Ixeris** — buffered raw input and threaded event polling to improve client performance. **Language Reload** — reduces load times and adds quality-of-life changes related to languages. **Lithium** — improves a number of systems with the goal of not changing any vanilla mechanics. **Memory Leak Fix** — fixes multiple random memory leaks in Minecraft for both the client and server. **Modern Fix** — improves performance, reduces memory usage, and fixes many bugs in modern versions. **More Culling** — changes how multiple types of culling are handled in order to improve performance. **Particle Core** — particle culling, rendering optimizations, configurable type-specific spawn reduction. **Server Core** — several patches and optimizations to improve performance and reduce lagspikes. **Sodium** — greatly improves frame rates and micro-stutter, while fixing many graphical issues. **Starlight** — rewrites the light engine to fix lighting performance and lighting errors. **Very Many Players** — improves general server performance at high playercount.
Some additional mods for Sodium
**Indium** — provides support for the Fabric Rendering API, based on Indigo *(not needed for Sodium 0.6.0+)*. **Reese's Sodium Extra** — aims to bring most of OptiFine's eye-candy options that shouldn't be in Sodium. **Reese's Sodium Options** — replaces Sodium's options screen with intention of improving user experience. **Sodium Shadowy Path Blocks** — adds vanilla-like smooth lighting to non-full blocks when using Sodium.
We also use several mods that fix various issues
**Bad Horse Fix** — fixes horse markings appearing above horse armor when using Iris or Oculus. **Cubes Without Borders** — allows you to play Minecraft in a borderless fullscreen window mode. **Debugify** — replaces many mods and fixes over 70+ bugs found in the Minecraft bug tracking system. **Model Gap Fix** — applies targeted UV/model-generation adjustments to fix gaps in block and item models. **No Chat Reports** — strips cryptographic signatures, making your chat messages impossible to track.
Visual and atmospheric improvements
**Continuity** — allows resourcepacks to use Connected, Emissive, and Overlay textures without OptiFine. **Entity Model Features** — designed for anyone who wants to use CEM resourcepack features from OptiFine. **Entity Texture Features** — custom various entity textures and player skin features without OptiFine. **Nuit** — custom skybox engine with keyframe-based transitions, rotation, and custom weather rendering. **Nuit Interop** — provides compatibility for OptiFine/MCPatcher custom skies, allowing them to work with Nuit. **Iris** — a modern shaderpack loader for Minecraft intended to be compatible with existing OptiFine's shaders. **Lamb Dynamic Lights** — adds OptiFine's dynamic lighs to Minecraft *(in case you don't play with Iris shaders)*. **Polytone** — customizable colormaps, block colors, and block sounds with support for OptiFine format. **Presence Footsteps** — adds new and more dynamic sounds for every block the player walks on. **Sound Physics Remastered** — realistic sound attenuation, reverberation, and absorption through blocks.
Libraries for all the above mods
**Cloth Config API** — the most popular and widely used configuration library for Minecraft mods. **Config Manager** — allows modpack developers to ship config files in a simple and user-friendly way. **Fabric API** — provides common hooks and intercompatibility measures used by Fabric mods. **Fabric Language Kotlin** — enables usage of the Kotlin programming language for Fabric mods. **Fzzy Config** — provides a wide array of features above and beyond what you can find in other libraries. **Mod Menu** — allows you to view your installed mods and provides quick and easy access to their settings. **Yet Another Config Lib** — a builder-based configuration library created to fill a gap in this area of modding.
Differences between modpack versions
The mod list may vary depending on the version *(Versions or Versions)* and/or mod loader *(Versions / Versions / Versions)*. Please refer to the Versions section for the mod list for your specific modpack version *(scroll down to the bottom)*.
Spark Profiler for version 0.1.0+1.20.1-Fabric

[Render thread/WARN]: Game took 13.589 seconds to start. [Render thread/WARN]: Initial datapack load took 675.4 ms. [Render thread/WARN]: Time from main menu to in-game was 1.8011396 seconds. [Render thread/WARN]: Total time to load game and open world was 15.39014 seconds.
Spark Profiler for version 0.1.0+1.20.1-Forge

[Render thread/WARN]: Game took 21.968 seconds to start. [Render thread/WARN]: Initial datapack load took 751.7 ms. [Render thread/WARN]: Time from main menu to in-game was 2.206881 seconds. [Render thread/WARN]: Total time to load game and open world was 24.174881 seconds.
Spark Profiler for version 0.1.0+1.21.1-Fabric

[Render thread/WARN]: Game took 14.305 seconds to start. [Render thread/WARN]: Initial datapack load took 785.6 ms. [Render thread/WARN]: Time from main menu to in-game was 2.3327239 seconds. [Render thread/WARN]: Total time to load game and open world was 16.637724 seconds.
Spark Profiler for version 0.1.0+1.21.1-NeoForge

[Render thread/WARN]: Game took 20.364 seconds to start. [Render thread/WARN]: Initial datapack load took 907.1 ms. [Render thread/WARN]: Time from main menu to in-game was 2.5274174 seconds. [Render thread/WARN]: Total time to load game and open world was 22.891418 seconds.