サポート - Technical Support | Predecessor

How to switch to DirectX 11 on Epic Games Store?

Last update: 2025-11-21

Having performance issues while playing Predecessor on DirectX 12?
You may see improved performance by switching to DirectX 11. To do so, follow these steps:

  1. Open the Epic Games Launcher.
  2. Click on the first letter of your username in the top-right corner.
  3. Select Settings.
  4. Scroll to find Predecessor, then expand the section.
  5. Tick the box for Additional Command Line Arguments.
  6. Enter the following: -d3d11

The next time you launch Predecessor, it will run using DirectX 11, which may help improve performance.

To revert back to DirectX 12, simply remove the command line argument.