it seems the game doesn't have proper support for dual monitors. no matter how i change it, it always defaults to my small side monitor instead of the large default one. i move it, i force it, doesn't matter. on restart it forgets the position and goes back to secondary screen. is there a way to fix this i don't know about?

I have the same problem. Haven't found anyway that the game remembers to open on the right screen either

A solution would be greatly appreciated

I have bigger main monitor and secondary 5:4 17 inches.
In Windows the bigger one is set to be the first one and the game launches on that one, no problem.

try Windows-logo key + shift + directional keys right or left

Sadly none of these work for me. The game just simply refuses to open on my bigger display (the one set to be my main display in graphic settings). Trying to force the windows over with WinKey + Shift + Arrow keys also doesn't work :(

In game options i´ve set it to borderless fullscreen 1920x1080. In Win10 screen(second screen, my TV) options i have scaling to 100% !
When game launches, Windows-logo key + shift + directional keys right. That´s okay for me, hope it helps!

It's definitely something setup-specific. The game runs on the primary screen on my dual screen setup.

You may be able to use your graphics card control panel application to create a profile for this game that launches it on a specific screen.

maybe it's related to monitor number. my primary default monitor is marked as #2 by windows. the secondary one got assigned as #1.

edit: yep, this is it. i managed to temporarily change my default monitor's number to 1 and the game started on it. after a reboot it went back to 2 and game started on side monitor. the game's set to start on monitor #1 instead of default monitor. doesn't seem like anything can be done about it until the game's patched to fix it.