Is there any way to change in-game resolution?
I'm on a 4K setup and for work need that space, but my GPU has trouble handling games at anything more than HD (2K).

I've looked into both the game and its profile directory*, but seen no cfg, ini or other config file to tweak and the in-game options are less then helpful (change text size, music level, scroll speed)

* - %USERPROFILE%\AppData\LocalLow\Jump Over the Age\Citizen Sleeper

EDIT - digging about Unity (this game's engine), I found some command line options:
https://docs.unity3d.com/Manual/PlayerCommandLineArguments.html

Adding the arguments "-screen-width 1920 -screen-height 1080" to the game's shortcut one can force FHD for instance.