Hi Ingwer,
Thank you for the time to reply and provide some amazing and detailed feedback!
Now that you mention it, I agree that Simulation should not be the genre.
Indeed... I should have been more clear that the character is an ex-doctor, who is now sent as an investigator to the hospital - the background of being an ex-doctor helps with narratively explaining why the character is able to join a hospital and work with (initially) no suspicion. I do agree that there is a large amount of details that I will need to iron out, and this point also applies to side quests - thank you!
I will work on refining the 'big feature' within the systems... I am thinking of something to do with the dialogue system, particularly about diagnosing patients / interviewing a person of interest.
I will also have a think about what to prioritise (or perhaps it will come natural at what I am better at) - either gameplay flow or narrative... This will also inform me on whether I should separate Day/Night sections or implement both routine and investigation together.
Thanks again Ingwer!