I just finished playing it and got all the four endings after playing around with the choices and experimenting and stuff.
I couldn't help but notice how heavily it draws inspiration from Danganronpa.
The murder mysteries, the trapped characters, and the autopsy report thing. it all reminds me of the Danganronpa series. Even the characters are kind of weird and quirky like Danganronpa.
I really enjoyed this game thoug and I think any fans of Danganronpa will also have a great time.
I will check the other games in the series now. If they are similar to this game then I think I stumbled to a real treasure here.
A final thought I see some people confused about the engine used here. its a modded version of the Unity engine, you can see it here