They're crab people
A mirelurk, a humanoid crab from the Fallout series of games
As suchLike most crabs, they don't walk towards their front as we do. They walkhave an easier time walking sideways than forward. They exhibit laterality so one side is always the "front side" when they walk sideways. Most of their population might be right walking so they would walk widdershins when examining things, while their equivalent for left-handed people would walk clockwise instead.