Organize all the tiles by type and remove the following tiles, which are only used in the Advanced game or to adjust the difficulty of the game: 7 Keepers, 3 Pit Fiends, 3 Pathless, 5 Omens, 1 Wax Eater, 1 Key tile and 2 Crumbling T Passages. Place them back into the box, as they will not be needed for the standard game.