any chance you can change Next Day: Survival from Unsupported because it now has an offline single player mode.
Hello and welcome to the community.
It will not be possible to make a trainer for this game.
The game’s single-player mode is still server sided (online) and still requires a constant internet connection. Therefore, trainers are not possible both for technical and legal reasons.
“Single-Player” does not necessarily mean “offline”. We are entering an era where several and counting “single player” games are now online - Call of Duty, Payday, etc.
here is an image showing offline mode 
just checked I picked offline mode and disconnected from the internet clicked start game and it resumed from my last offline save so this offline mode is not server side nor does it need the internet and it doesn’t run EAC when using offline
they added this option because the data centre they hosted their servers on closed down and they hadn’t found a replacement for reasons based on them being in Russia
here is link to the info on steam Next Day: Survival - Update v1.3.0 (03/06/2023) - Steam News