A close up of a long hallway with a black floor and windows

SCP-087 - The Stairwell, from SCP lore, is an unlit platform staircase whose access door (disguised to resemble a janitorial closet) descends from a corridor located on a university campus, the stairs descend on a 38 degree angle for 13 steps before reaching a semicircular platform of approximately 3 meters in diameter, Descent direction rotates 180 degrees at each platform; the staircase seems to have no visible end, The design of the stairwell limits subjects to a visual range of approximately flights, there are no lighting fixtures or windows present and no visible lighting sources; it is pitch black with white and black and with bare concrete walls; detailed matte painting concept art, atmospheric, diffused lighting, eerie vibes, atmospheric, cinematic, dim light, by artgerm, by karol bak, 3 d, trending on artstation, octane render, 8 k, masterpiece

verybadimagenegative_v1.3, ng_deepnegative_v1_75t, (ugly face:0.8),cross-eyed,sketches, (worst quality:2), (low quality:2), (normal quality:2), lowres, normal quality, ((monochrome)), ((grayscale)), skin spots, acnes, skin blemishes, bad anatomy, DeepNegative, facing away, tilted head, {Multiple people}, lowres, bad anatomy, bad hands, text, error, missing fingers, extra digit, fewer digits, cropped, worstquality, low quality, normal quality, jpegartifacts, signature, watermark, username, blurry, bad feet, cropped, poorly drawn hands, poorly drawn face, mutation, deformed, worst quality, low quality, normal quality, jpeg artifacts, signature, watermark, extra fingers, fewer digits, extra limbs, extra arms,extra legs, malformed limbs, fused fingers, too many fingers, long neck, cross-eyed,mutated hands, polar lowres, bad body, bad proportions, gross proportions, text, error, missing fingers, missing arms, missing legs, extra digit, extra arms, extra leg, extra foot, ((repeating hair))