Is there a reason you don’t impose disadvantage on perception roles when the PCs are in darkness? Even with darkvision, darkness is still considered low light and I’m just curious as to the reason for homebrewing that. It’s sometimes my instead increasing the DC of the check in my head, or just forgetting. No intentional “omission” of any detriment for low light.
— Matthew Mercer (@matthewmercer) March 2, 2018
Darkness doesn’t impose disadvantage on Wisdom (Perception) checks, it makes creatures effectively blind, and therefore incapable of making Wisdom (Perception) checks based on sight. Remember, Perception is all 5 senses, not just sight.
Dim light imposes disadvantage on Wisdom (Perception) checks relying on sight. When dealing with darkvision, creature’s still follow these rules. Only 60′ of darkness is treated as dim light, and only 60′ of dim light is treated as bright light. #NotAllDarkness
P.S. My comment was directed towards Miss/Mrs. Serenity, not towards Mr. Mercer.
I hope the previous comment helps some people out in the future!