Duet Night Abyss is an action role-playing game set in the world of Atlasia, where magic and machinery coexist. The game features a dual-protagonist narrative, allowing you to experience the story from different social backgrounds. It combines third-person shooting with action RPG combat, with a variety of customizable weapons and characters.
Although it can be an interesting game, it is currently unstable and can hinder your overall progression in the game. If you are encountering this issue, a reliable solution can come to your rescue. To help you out, here’s a comprehensive guide on overcoming these issues, including a proven solution for the Fatal Error launcher fix for Duet Night Abyss.
How to Fix Fatal Error Launcher Problem in Duet Night Abyss

Launching Duet Night Abyss frequently results in the ‘Fatal Error – UE4-EMLauncher Game Has Crashed’ dialog box appearing, after which the game closes automatically. Moreover, this is a widespread issue, and it is expected that upcoming patches from the developers will be necessary to provide a permanent solution.
Interestingly, this error does not originate from outdated PC drivers or incompatible hardware and has largely been ruled out by community feedback and support reports. It is a game bug, and it can be fixed if you follow these few methods mentioned below:
Method 1 – Repair the Game Client
Sometimes you can receive the ‘Fatal Error – UE4 – EMLauncher Game Has Crashed’ dialog box if your game files are corrupted. Don’t worry so much, as this problem can be solved.
Firstly, open the Duet Nights Abyss launcher. Then, click on the three dashes button on the right side of the ‘Start’ button. After that, select the ‘Repair Now’ option and press ‘Confirm’ to start scanning the game files. Once the scanning is complete, restart the game, and you’re ready to play again.
Method 2 – Launch the Game through DirectX 11
Alternatively, you can also launch the game by using this method if the above method doesn’t work. Duet Night Abyss allows you to launch the game directly through DirectX 11 instead of 12.
Just tick the checkbox of the ‘Launch with DirectX 11’ above the Start button. Just make sure that you’ve the latest version of DirectX 11 before launching the game with this setting turned on.
Method 3 – Open the Launcher while Offline
There is one more workaround method that you can try. Just open the launcher offline to bypass the network-related startup checks that cause the crash. This method involves disabling Wi-Fi or unplugging the Ethernet, then opening the Duet Night Abyss launcher.
Once the launcher is open and responsive, you can re-enable your internet connection and proceed to download or launch the game. You can use all these methods to bypass the problem until the developers resolve this issue.
Frequently Asked Questions (FAQs)
The Fatal Error crash occurs due to launcher asset verification failures, network connectivity issues, game file corruption, and incompatible graphics settings. The error is not related to PC driver problems, but more a combination of network issues and game launcher conflicts.
Although it is necessary to keep GPU and system drivers updated, the Fatal Error is rarely caused solely by outdated drivers. It is recommended to keep everything updated regardless.
Yes, opening the game executable directly (EM.exe) from the installation folder often bypasses launcher checks and prevents the Fatal Error pop-up.
Yes, launching the game offline by disabling your internet connection and reconnecting after the launcher opens is a commonly reported fix. The game can still show the error briefly, but it will continue to launch normally.
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Sandbox, MMO, Social

