You need to choose a dungeon level for the dungeon (usually your character's level) and may choose a theme as well. The theme might be something like “Orc Lair” if you chose a theme, then one half of the monsters encountered will be from that theme (like “Orcs” or “Orc Fighters” or “Orc Thieves”).
Once you have set a level for the dungeon (typically the average of your character-levels), each time a monster result occurs in the room contents table, roll here:
| 1d6 Roll | Monster Chart Consulted |
| 1-2 | One level lower than dungeon level |
| 3-5 | Equal to dungeon level |
| 6 | One level higher than the dungeon level |