Cyberpunk 2077 Modding Tools Guide 2026

Cyberpunk 2077's modding scene has matured into a sophisticated ecosystem. Unlike simpler games where you just drop files in a folder, CP2077 requires a stack of "core mods" that work together. Here's what each one does and why you need them all.

🔧 Cyber Engine Tweaks (CET)

The essential foundation. CET provides a LUA scripting framework, in-game console, and hotkey binding. Every advanced mod needs this. Install first. 17M+ downloads.

🧱 RED4ext

CP2077's equivalent of Skyrim Script Extender. Loads .DLL plugins that extend the REDengine 4. Required by most gameplay mods. Two parts: the loader and the SDK.

📝 Redscript

A custom programming language and compiler for CP2077 modding. Many mods ship as .reds files that Redscript compiles at runtime. Open source on GitHub.

📦 ArchiveXL + TweakXL

ArchiveXL: Lets mods load custom resources without overwriting game files. Prevents mod conflicts. TweakXL: Modifies the TweakDB database (game configs). Together they handle most asset and config modding.

⚙️ Codeware

A library/framework for creating Redscript and CET mods. Exposes engine functions not normally available. Required by many newer mods.

📋 Input Loader

Merges keybinding XML files so multiple mods can add controls without conflicting. Install this if you use mods that add hotkeys.

Installation Order

  1. Install Cyberpunk 2077
  2. Install Vortex mod manager (recommended)
  3. Install CET (Cyber Engine Tweaks)
  4. Install RED4ext
  5. Install Redscript
  6. Install ArchiveXL + TweakXL
  7. Install Codeware
  8. Install Input Loader
  9. Start adding gameplay mods!

Most mods go in Cyberpunk 2077/archive/pc/mod/. Vortex handles this automatically.