Idea for game - I have one, who want?

[Abion47]

The names escape me, but there are horror games based on bad hallucinogen trips. That sounds like the kind of thing you are talking about.

There's also Fran Bow, a maybe-not-quite-horror game loosely based on Alice in Wonderland where you are never really sure if what she sees and experiences is real or if it is a product of the combination of schizophrenia and the drugs/treatment methods the psychiatric hospital is using to "manage" it.