The second edition Advanced Dungeons & Dragons Dungeon Master's Guide was released in 1989.

In first edition Advanced Dungeons & Dragons, balors were known as "type VI demons."

In first edition Advanced Dungeons & Dragons, nalfeshnees were known as type IV demons.

The second edition of Battlesystem was published in 1989, revised for use with 2nd edition Advanced Dungeons & Dragons.

It also appeared in the first edition Advanced Dungeons & Dragons in the original Monster Manual (1977).

The sea lion appeared in first edition Advanced Dungeons & Dragons in the original Monster Manual (1977).

The 128-page book was published by Wizards of the Coast in 2000 for second edition Advanced Dungeons & Dragons rules.

The set was updated in 1993 under the same name for use with second edition Advanced Dungeons & Dragons.

In first edition Advanced Dungeons & Dragons, glabrezu were known as type III demons.

The adventure is designed for first edition Advanced Dungeons & Dragons characters of levels 8-10.