Finally I got an Idea (my turn to say this ^^)

I struggled so much to find something that I decided to first build a room on unity, and then see how I’d like it to behave and what story I would tell to myself.

I wanted to get out the walls ! I wanted it to be interactive, and to change.

This a gif of my first step in prototyping:

QUite boring for now, but it seems promising