We’ve released an update that allows you to change the screen resolution.
When you launch the game, a file named "game.ini" will be created.
Open "game.ini" and change this line:
HardwareFullScreen=0
to:
HardwareFullScreen=1
Then restart the game. After that, you’ll be able to change the resolution from the in-game Settings/Options.
Note: Enabling this setting will disable mouse input. You can play using a keyboard or a game controller.
If you want to scale up the game while keeping mouse support, you’ll need to use Windows display scaling as before (e.g., changing the scaling percentage in Windows Settings).
Please see the instructions on the store page for details.