Uhhhhh it’s pretty dark, but I didn’t find it like pitch black total blindness can’t see anything if that makes sense. If you find darkness disorientating or bad for your health I would be more worried about Seeds of Extinction and Dead Exposure. Both are very dark for the whole house. This is thankfully just one room at the beginning and it’s short.The last room in the house
is very dark as well. Though, the scares in this room light it up and the scares are very frequent in the house so it didn’t feel dark, unless no one was scaring... if that makes sense