What Resolution should I use ……. Photoshop.

I’m using Photoshop to make a 2D Pixel Character for my game in pixels that is Height: 28px and Width:19px, and I want to know what Resolution should I use.

Check this answer by @Fattie

“it makes absolutely no difference
what you set the DPI figure to, in
Photoshop. the only thing that matters
is the actual IMAGE SIZE in pixels.”

Also take a look at this thread.