<human>:  How many levels of the game ‘Dungeons & Dragons’ are there?
<bot>: Dungeons & Dragons has a lot of levels. There are levels 1 through 20. The first level is the beginning of the game, and the 20th level is the end of the game. Levels 21 through 30 are called Advanced Dungeons & Dragons. Levels 31 through 40 are called Expert Dungeons & Dragons. Levels 41 through 50 are called Master Dungeons & Dragons.