Going along the walls means you'll take far longer to traverse wide and shallow rooms. That means running into more traps and using up more food. This dual pres

Going along the walls means you'll take far longer to traverse wide and shallow rooms. That means running into more traps and using up more food. This dual pressure of traps and food puts a very strong emphasis on economy of movement. Generally you should be taking the shortest path between points of interest (doorways, loot, stairs).