Mud Is a Hazard that Is Totally Natural for RPGs
…Mud is a hazard that is totally natural for RPGs. Outdoor locations are extremely liable to be mud-spattered in rainy seasons, while underground locations with an earthen floor could, under sufficient flooding, turn into a quagmire not unlike those in Passchendaele. Particularly nasty is when the characters are caught in a torrential downpour and the area around them changes from fields into a swamp. The mud in Ypres was compared to the consistency of cheesecake, and soldiers would slowly sink in like quicksand….
…Armor is absolutely a disadvantage in these situations. A World War I soldier’s kit is fairly comparable in weight to a fully loaded fighter wearing plate armor; if a character in plate falls into sufficiently deep mud, they need to be pulled out or they will drown. Chain is less heavy and probably gives a better chance to get out, although the armor might be ruined by caked-on mud holding water close to spots that will then be rusted out….
…And mud is a great place to hide pretty much anything. It could be treasure that was once buried, or a door half-hidden by muck where opening it is a logistical challenge, or a floor now covered that holds a secret message….