Castlevania Dominus Collection: How to Fix Fullscreen Resolution Issue

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Using ALT+ENTER to enter fullscreen forces the game to run at 1284×701. This simple guide will show you how to run the game in fullscreen mode at your desired resolution.

 

Method

1. Before booting the game, locate and open savecfg.txt found in:
Steam/steamapps/common/Castlevania Dominus Collection/winbackup

Type in your desired resolution in the last two lines:
LAST_CLIENT_SIZE_X = [Type here]
LAST_CLIENT_SIZE_Y = *[Type here]

As an example, this is what mine looks like:

*Y value gets slightly altered after booting the game. For reference, my original Y Value was 2160.

2. Now, locate the game executable:
Steam/steamapps/common/Castlevania Dominus Collection
game.exe -> Properties -> Compatibility -> Change high DPI settings -> High DPI scaling override

Under High DPI scaling override, tick Override high DPI scaling behavior and set it to Application

3. Boot up the game and use ALT+ENTER to enter fullscreen. The game should now be in your desired resolution without switching back to 1284×701.

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