Digital art by Thomas Sutter.
There's a lot of underground independent artists who mix different sounds and music styles and don't have an specific or just one musical genre.
Dark electronic experimental music is a mixture of a lot of genres like: idm, noise, dark ambient, witch house, drone, glitch, downtempo & many others. Is something avant-garde but focused totally in dark thematics like ghosts, war, sadness, nightmares, occultism, religion, esoterism and others.
Here you have a little list of Main Dark Experimental Artists with his main page.
α Ori
Country: France
Genres mixed: Dark ambient, glitch, idm, noise
web:
https://apsu.neocities.org/alpha_ori/
ангел - Catalyst
Country: Spain
Genres mixed: dark synth, ambient, industrial
Ask Heroin Sally
Country: Canada
Genres mixed: Noise, dark ambient, industrial, horror soundscapes
Cosmic Disruption Orchestra
Country: UK
Genres mixed: Noise, dark ambient, glitch
D3mon
Country: Italy
Genres mixed: Glitch, Dark ambient, Lofi
web:
https://soundcloud.com/demon_deejay/tracks
Deadly Oak
Country: Spain
Genres mixed: Synthwave, trap, witch house, darkwave, bassmusic
Diaspora Psichica
Country: Italy
Genres mixed: Dark ambient, Industrial, Cinematic
Humanfobia / Filmy Ghost
Country: Chile
Genres mixed: Noise, Glitch, Dark Ambient, Computer Music, Sound Collage,
Witch House, Dark electro.
Le Vitriol Hermétique
Country: France
Genres mixed: Spoken poetry, dark ambient