I'm looking for games that somehow deal with or depict psychiatry and mental health. Do you guys know of any that you can recommend?

I already own Hellblade, Sanitarium, The White Door, Suicide of Rachel Foster (and maybe some I can't remember off the top of my head) and I have a bunch already on my wantlist, but I'm always looking for more.

Kane & Lynch 2: Dog Days and Alice: Madness Returns

American McGee's Alice. Though it's not on GOG.

Silent Hill series
The Evil Within series

Lovecraft's Untold Stories
Call of Cthulhu®: Dark Corners of the Earth

- The Cat Lady
- Downfall (NB: The original 2009 version was made freeware by the developer here).

Neurodeck : Psychological Deckbuilder

One of the main characters, Lynch, suffers from regular psychotic episodes where he violently attacks random people. In the second game, you play as him.

Vampire: The Masquerade - Bloodlines lets you play as a newly embraced vampire of the Malkavian clan, complete with unique abilities and dialogue options reflecting the clan's characteristic disposition towards insanity and mental illnesses.
There's also a really neat twist/revelation at the end of one particular NPC's questline that involves a mental disorder.

In Sound Mind
Psychonauts games

Thanks for the link, added the Cat Lady to my wantlist! The redux-version of Downfall is quite expensive. Is it significantly different from the original one? That sounds interesting, thanks! Put it on my wantlist.

I have the game, haven't played it a lot yet but I think I know which NPC you mean ;-)

Psychonauts is in my collection, In Sound Mind looks interesting, added to wantlist.

To be honest I still prefer the original (they changed the ending quite a lot in the redux, some other things were toned back, and the voice acting in the Redux was poor enough that I preferred the text-only original), but it's down to personal taste.

Also one of Clive Barker`s Jericho characters was diagnosed with mild autism.

If you're ok with a walking sim: "The Town of Light"