itch.io

Yeh that's cool, I understand what you mean and the game does already support those higher resolutions, but only if it thinks your desktop resolution is high enough. When determining what zoom levels to offer, I look at the logical height of the game window, which is 270 pixels, then see how many times I can zoom that before it equals or goes over the height of the desktop, that's why you get offered up to x3.  On a 1080 pixel high desktop, x4 is the same a full screen and x5 would be too big, so those options aren't offered. I think the maximum you'll see, if you desktop resolution is high enough, is x7, so that would be 3360 x 1890. There's always the option to manually resize the window if the option you want isn't available, and it will remember the window size. I do wonder if I tried to make it too clever! It was fun to code, but a pain in the back side at the same time :o)