Here is my favorite pedalboard setup for dark, atmospheric soundscapes.
SIGNAL CHAIN: WAMPLER ego compressor, EHX Attack Decay, OBNE Reflector, LANEY Ironheart Loudpedal, MOOER Radar (Twinverb), BOSS SY-1 (controlled by an expression pedal), EQD Afterneath, OBNE Mondegreen, EVENTIDE Micropitch (controlled by OBNE Ramper), NEUBANER Immerse mk2, BOSS DD-20.
SYNTH: Mininova
TUNING: D standard.