Yes. APTweaks: Core (11.x Classic) is free to download from Modrinth. Its license is MIT.

How do I add it to my Nxeon server?

Use “Add to a server” on this page, or open NxLabs from your dashboard. We install it, restart your server and switch it on.

APTweaks: Core (11.x Classic) — Minecraft Mods

About APTweaks: Core (11.x Classic)

From Modrinth

The core is required for all adaptive performance tweaks modules and provides a shared API, monitoring functionally, events and commands.

🔩 Adaptive Performance Tweaks: Core (11.x Classic)

[ APTweaks: Core Versions ][mod_page]

[ Download on CurseForge ][mod_page] [ CurseForge Downloads ][mod_page]

[][modrinth_page] [][modrinth_page]

> ℹ️ 11.x Classic Module > > This module belongs to the classic Adaptive Performance Tweaks 11.x module system and remains available for existing modpacks. > > New features and active development continue in the new all-in-one version: > Adaptive Performance Tweaks > > ⚠️ Do not use this module together with Adaptive Performance Tweaks 12.x or newer.

![Adaptive Performance Tweaks: Core][header]

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:

➡️ [Install the bundled version][bundled]

[header]: https://github.com/MarkusBordihn/BOs-Adaptive-Performance-Tweaks/wiki/images/aptweaks-header-only.png

[eco-stack-manager]: https://modrinth.com/mod/eco-stack-manager

[bundled]: https://modrinth.com/mod/adaptive-performance-tweaks

[mod_page]: https://www.curseforge.com/minecraft/mc-mods/adaptive-performance-tweaks-core

[modrinth_page]: https://modrinth.com/mod/L5xaBiBb

[issues]: https://github.com/MarkusBordihn/BOs-Adaptive-Performance-Tweaks/issues

[issues_open]: https://github.com/MarkusBordihn/BOs-Adaptive-Performance-Tweaks/issues

[issues_closed]: https://github.com/MarkusBordihn/BOs-Adaptive-Performance-Tweaks/issues?q=is%3Aissue+is%3Aclosed

Highlights

From source data

Game versions

Supports 14 Minecraft versions, the newest being 1.21.1.

Loaders

Runs on Forge and NeoForge.

Footprint

Rated a light load on a server.

What kind of mod it is

From the catalog

Listed on Modrinth as “Mods”

Performance

Makes the game or server run faster or lighter without changing how it plays.

Runs on your server

From source side support

Modrinth lists APTweaks: Core (11.x Classic) as required on the server. Check its Modrinth page to see whether players need it too.

Compatibility

Game: Minecraft
Loaders: ForgeNeoForge
Runs on: Serverrequired on the server
Game versions: 1.21.1 and 13 earlier

Verified at the source

✓ModrinthOfficial listing, checked 2026-10-01Open ↗
✓AuthorKaworru, as published on Modrinth
✓LicenseMITFree

APTweaks: Core (11.x Classic)

Gallery

About APTweaks: Core (11.x Classic)