APTweaks: Core (11.x Classic)
The core is required for all adaptive performance tweaks modules and provides a shared API, monitoring functionally, events and commands.
⬇ Download on CurseForge🔩 Adaptive Performance Tweaks: Core (11.x Classic)
ℹ️ APTweaks 11.x Classic Module
This module is part of the classic Adaptive Performance Tweaks 11.x module system. Existing 11.x modpacks can continue using it.
For new installations and future feature updates, use the new all-in-one version: Adaptive Performance Tweaks
⚠️ Do not install this module together with Adaptive Performance Tweaks 12.x or newer.

Server-side Forge module that provides the shared foundation for all APTweaks modules: API, monitoring, events, and commands. Works standalone on the server; clients are optional.
Status ✅
Stable 11.x Classic / LTS module for existing Forge modpacks.
Critical fixes and compatibility updates may be provided when needed. New features, new loader support, and modern Minecraft version updates are developed in the new all-in-one Adaptive Performance Tweaks version.
Features ✨
- Server-side only; clients do not need to install the mod.
- Pick only the modules you want; highly configurable via config files.
- No core/mixin patches → broad mod compatibility.
- Built-in debug info to see what the optimizer is doing.
⚠️ Always keep regular backups of your world.
Core capabilities 🔩
- Shared API for all APTweaks modules.
- Central monitoring and metrics.
- Common events and command handling.
Bundled modules 📦
Want everything at once? Install the bundled version:
APTweaks: Core (11.x Classic) is a free Minecraft Java mod. Compatible with Minecraft 1.21.1, 1.20.1, 1.19.2, 1.18.2 and newer. Downloaded 12,397,423 times (via CurseForge). Download it and open it directly in the game.