Music nearly everybody here probably knows: Bauhaus, Joy Division, Siouxsie, Sisters of Mercy, Clan of Xymox, Depeche Mode, Frontline Assembly, Skinny Puppy.

Music that might be a bit more unknown: She Wants Revenge, Cinema Strange, Linear Aspera, DIN [A]TOD, Genevieve Pasquier, Unter Null, Dismantled, IAMX, The Vanishing, Kirlian Camera, Plastic Assault, Welle Erdball.

Some more electro and alternative stuff here I confess, I do also enjoy listening to many other genres, EBM, Synthie Pop, Synthwave, Electroclash, Minimal, Shoegaze, Trip Hop, acoustic singer song writers... overall I don't give too much about genre definitions however ^^

http://store.steampowered.com/app/384110

Pathologic. From point of atmoshpere this has been the most 'goth' one so far. Great indie game imho and one of my favorites.

http://store.steampowered.com/app/316790/

Grim Fandango. More a funny game but for me the best Lucas Arts adventure of all time.

Apart from these 'Vampire: The Masquerade - Bloodlines' is still waiting in my library and will be played sometime.