Users: Troubleshooting CET

If Cyber Engine Tweaks isn't working, here's what you can do

This is the troubleshooting page for Cyber Engine Tweaks (CET). For general troubleshooting, go here. For an explanation of how CET works, see Cyber Engine Tweaks.

If you are on Linux/SteamDeck, make sure to follow this guide to install the right .dll overrides before reading on.

If your game is pirated, go here.

If you're experiencing microstutters, check here

If you are experiencing crashes caused by CET, try running Cyberpunk in compatibility mode

If you can't open your overlay, check Reset your keybind

If your CET just stopped working (without a game update) or if you've been sent here to do a clean install, see below how to Reinstall CET

Otherwise, read on for the full troubleshooting instructions.

General troubleshooting

Before trying anything else, please make sure that your Windows and your graphics driver are up-to-date – this actually helps in around 50% of all cases. If you need instructions, you can find them in the red box under the general troubleshooting guide's Navigation section.

Step 0: Go to your install directory

Go to your, since all paths given in this guide will be relative to that folder.

TL;DR:

CET is installed to bin\x64\plugins\cyber_engine_tweaks

The log file is bin\x64\plugins\cyber_engine_tweaks\cyber_engine_tweaks.log

Your keybind is stored in bin\x64\plugins\cyber_engine_tweaks\cyber_engine_tweaks.log

Example:

Your	C:\GOG Games\Cyberpunk 2077\
Path from the guide	bin\x64\plugins\cyber_engine_tweaks
Folder you go to	C:\GOG Games\Cyberpunk 2077\bin\x64\plugins\cyber_engine_tweaks

Step 0.5: Update your game and the mod

Each version of CET is compatible with exactly one game version. Nobody keeps track of those other than "the most recent ones work together".

For that reason, the Redmodding Discord can only support you the most recent version.

If there's a mismatch, then you can find a warning in the following file:

bin\x64\plugins\cyber_engine_tweaks\cyber_engine_tweaks.log

If you don't have that file, proceed to Step 2.

Step 1: Check the install folder

Go to your and check the following subfolder:

bin\x64\plugins

It should have at least the following files:

If you do not have these folders, then CET isn't installed correctly. Head to Reinstall CETand start with step 3.

Step 2: Check for a log file

If everything looks okay in step 1, check if you have a file cyber_engine_tweaks.log inside the cyber_engine_tweaks folder from the previous screenshot.

You don't have a log file

No log file means that CET isn't starting up.

• The easiest fix is to Reinstall CET.

• If you did that and it didn't help, check your antivirus. Most likely, it is protecting you from scary things like Cyber Engine Tweaks. Disable it.

• If that didn't help either, update everything - Windows, your drivers, etc. You can find links and instructions in the red box on the general troubleshooting page.

You have a log file

• If you do have it, you can open it and try to make sense of the error message. You can find more information on that here, or find help in the #cet-suppport channel on our Discord.

Reinstall CET

Uninstalling (the full game or just the mod via Vortex) can leave files behind, which will fuck things up for you after a reinstall. This section tells you how to avoid that.

1. If you are using Vortex, turn it off (it will get angry otherwise)

2. Complete either of the following steps:

   • rename bin/x6/plugins to plugins_ or

   • delete the file bin/x6/plugins/cyber_engine_tweaks.asi

   • move the folder bin/x6/plugins/cyber_engine_tweaks out of plugins (e.g. your Desktop). Do not delete it yet.

3. Download the most recent CET from Nexus

4. Extract the downloaded archive to your (the bin folder will merge with the one that is already there)

5. Start the game: CET should now ask you to bind a key. If it doesn't:

   1. Update both the game and the mod (double-check if you're sure)

   2. Head to the troubleshooting guide and follow the steps in the red box at the top

6. Optional: Restore your mods and/or settings Now that CET works, find the old directory from step 2. Move the following files/folders:

   1. Mods: the directory mods from the old cyber_engine_tweaks folder

   2. Settings: The .json files directly inside cyber_engine_tweaks

7. Optional: delete the old folder (or leave it, it's your diskspace)

8. That's it! You're good to go!

Reset your keybind

1. Find the file \bin\x64\plugins\cyber_engine_tweaks\bindings.json and delete it.

2. Start the game.

3. You should now see a popup asking you to bind a key. Otherwise, read on.

I can't bind a key

If you do not see the popup at all, check your CET install or do a clean reinstall of CET.

Cick into the "Binding..." field.

If that doesn't help, make sure to turn off all your overlays (Discord, Steam, Microsoft Game Bar, Random Useless Bloatware) or start Cyberpunk in the Windowed Borderless mode.

Microstutters and Performance

If you're experiencing performance issues with CET, first make sure to Reinstall CET as per the instructions to rule out side effects from old files.

If that doesn't make the problems go away, make sure to update Windows and your graphics driver as per the red box under Troubleshooting's Navigation section.

If that doesn't help, you can find us in #cet-support on the REDmodding Discord. Please note that people there will first suggest everything else from this guide, so you might as well get it out of the way first.

Crash to Desktop on Alt+Tab

Make sure to update Windows and your graphics driver as per the red box under Troubleshooting's Navigation section, as this is the only chance you have of getting rid of your crashes.

This is a known issue with AMD cards, and it's not something the CET developers can fix. Everyone who could fix it is informed, but such things take time. If you're on an AMD card, you can try running your game in Windowed Borderless mode. Otherwise, you just have to live with the crashes.