I wanted to translate whats to translate in this game but honestly i have no idea how to.
Tried to edit the csv files but i cant get the dialogue in game to show in english
The csv file that need to be edited is the "trans_scenario" one in "translation/ENG" folder. I recommend using notepad (personal preference here).
Most of the missing dialogues (city part of the game) should mostly be located at the bottom of said csv. but forewarning, we're talking about swimming in tens of thousand lines to find the untranslated ones.
As for putting the game in english in first place, there's a second page in the ingame settings and you can choose the language in the upper-right corner here. Unless of course you already tried then it's a bug, either folder issue during installation, or an edit of the csv that wasn't made correctly.
Good luck