Heimdall Studios
GAME FIELD GUIDE / 001

Cyberpunk
2077.

Your Night City. Your mods.
Start with the right installation route.

WINDOWS MODDING GUIDE

CD PROJEKT RED · Developer & publisher
Steam App ID 1091500 · View on SteamDB ↗

Set up your mods ↓
Cyberpunk 2077 official Steam cover artwork
86 / 100
Metacritic · PCScore supplied by Steam
Checked October 13, 2026
WHERE YOU CAN PLAY

Available platforms.

Modding instructions below apply to Windows PC.

Windows PCGuide covers this version
MacApple silicon · Ultimate Edition
PlayStationPS5 · PS4 legacy
XboxSeries X|S · One legacy
Switch 2Ultimate Edition

PS4 and Xbox One are legacy releases; do not assume the same updates or expansion support as newer editions. This guide covers Windows. Mac and console availability does not imply Heimdall or REDmod compatibility.

PC storefronts: Steam · GOG · Epic · Console & other stores ↗

BEFORE YOU INSTALL

Which kind of mod do you have?

REDmod is one format. It is not required by every Cyberpunk mod.

REDmod installation

Install the REDmod DLC and preserve each mod folder under Cyberpunk 2077/mods, including its info.json manifest. Enable mods in REDlauncher or GOG Galaxy and let deployment finish.

Traditional archive mods

These use archive/pc/mod. Preserve required companion files; the REDmod switch does not control this route.

Framework-dependent mods

Follow the author’s requirements for CET, RED4ext or redscript. These use separate destinations and do not become REDmods merely by moving them.

COMMUNITY SOURCES

Find your next mod.

ModDB

A separate community listing for Cyberpunk mods and projects. Check whether a project offers a downloadable release.

Browse Cyberpunk projects ↗

Common building blocks

Install these only when a mod requires them. These are selected framework links, not a live popularity ranking.

Cyber Engine Tweaks ↗Lua scripting and an in-game interface.RED4ext ↗Required by many native plugins.redscript ↗Supports mods written in the game’s scripting language.
HEIMDALL HANDLING

Recognize first. Route second.

The proposed definition identifies the game, then checks the package layout and its requirements. Mixed or unrecognized packages require review.

  • REDmod: preserve each mod folder and its manifest; deployment and load order are part of activation.
  • Archive mods: keep archive names and companion files together. The REDmod switch does not control these files.
  • Framework mods: preserve their separate destinations and dependencies.
  • Recovery: record installed files and keep backups. Updating a definition must not silently move existing mods.
CHECKED OCTOBER 13, 2026

Sources & further reading.

SteamDB · game identity ↗Steam · game and reviews ↗CD PROJEKT RED · REDmod instructions ↗GOG · activating REDmod ↗REDmod technical documentation ↗Community · archive and REDmod routes ↗CD PROJEKT RED · Mac release ↗CD PROJEKT RED · Switch 2 release ↗ModDB · Cyberpunk community ↗Nexus · framework routing ↗