If your games are not showing up in your Citron library, or they fail to launch after being added, don’t stress too much, this is usually an easy fix. Most of the time, this issue is linked to outdated files or missing components, and resolving them only takes a few minutes. So follow along as this guide shows you how to get all of your games to appear in your Citron Emulator Library.

Takeaways:

  1. Learn how to fix games not showing or working in the Citron Emulator
  2. Why don't games appear in the Citron Emulator library when I add their location folder?

Why Aren’t Games Showing Up in the Citron Library?

When importing games into Citron, two main factors determine whether they load and display properly:

  1. Prod.keys: These are essential product keys that allow Citron to decrypt and recognise Nintendo Switch game files.

  2. Firmware Version: This defines how the emulator interacts with the game’s system software, ensuring compatibility with newer releases.

If either of these is missing, outdated, or mismatched, Citron may fail to detect or run your games.

How to Fix Games Not Showing or Working in the Citron Emulator

Citron is updated regularly to improve performance, stability, and compatibility with new games. Running an outdated version often leads to missing titles or crashes.

  • Open Citron.
  • Click Help in the menu bar.
  • Select Check for Updates and follow the on-screen instructions if a new version is available.

Alternatively, you can visit the official Citron website to download and install the latest version manually. Always back up your data before updating.

Check Your Citron Prod.keys

Citron relies on encryption keys from an actual Nintendo Switch console, specifically, prod.keys and title.keys. These files enable the emulator to decrypt and load games correctly. If the keys are outdated, corrupted, or missing, Citron will often fail to launch a game or display it in your library.

  • Locate your prod.keys file within Citron’s key directory.
  • Ensure that the keys correspond to the same firmware version you are using.
  • If your keys are outdated or you’ve recently updated your firmware, replace the old prod.keys with a newer version extracted from your own console.

Important: Only use keys obtained from your personal Nintendo Switch. Downloading or sharing them online is illegal. Once replaced, restart Citron and attempt to launch the affected game again.

Check You Have the Latest Firmware

A mismatch between your installed firmware and the game’s required version is another common reason games fail to appear or launch. Firmware files guide the emulator’s system-level operations, allowing it to properly emulate the Switch environment.

  • Open Citron and click Tools in the top menu.
  • Choose Install Firmware, then select Install from XCI or ZIP.
  • Locate your firmware package and confirm the installation.
  • Restart Citron to apply the changes.

After updating, try reimporting the game. It should now appear in your library and launch without issues.