“I’m not suggesting that you should actually build an ecological dungeon – some sins against reason are necessary to make the game play at its best. But to have conflict within the dungeon that is independent of the players is not a bad thing. The more you can give the impression that the dungeon is a real place, where things happen, things that the players can become involved in, the more interesting the dungeon becomes – and it needn’t have thousands of gold pieces in every room at all.”
Roger Musson (1983): The Dungeon Architect, part 3. The Best of White Dwarf, p. 37