I'd say a little bit less than an hour. It's not the worst "immersive art" installation, but also not the best.
The name is "Planet Happiness" at Mont des Arts
https://networkscience.wordpress.com/2019/01/18/game-dependency-graph-the-secret-of-monkey-island/
I don't know what they are
I'd say a little bit less than an hour. It's not the worst "immersive art" installation, but also not the best.