Dungeon Mastery is a complete Dungeon Master╒s aid. Not only does it allow you to create a complete fantasy setting, but was developed specifically to aid in the actual play of TSR's Advanced Dungeons & Dragons 2nd Edition fantasy role-playing game. Dungeon Mastery is $10 shareware - nuf said.
Dungeon Mastery is primarily composed of three stacks: Dungeon Mastery, DM Reference, and Module Maker. I've also included a fourth stack to be used as an alternate home stack when running Dungeon Mastery from floppies. This may be important to you, even if you have a external hard drive, since you may want Dungeon Mastery to be as portable as your Mac.
Stack 1) Dungeon Mastery╤this stack allows the DM to create random encounter tables, interactively resolve combat, track experience, keep notes and also perform a variety of other tasks (roll dice, consult charts, determine treasure awards, translate between languages and track the passing of seasons).
Stack 2) DM Reference╤this stack allows the DM to create and keep detailed data on characters, monsters, spells and equipment.
Stack 3) Module Maker╤this stack allows you to create adventure modules. With it you can easily map out an area and create a custom adventure (you are encouraged to share any stacks that you create╤I especially would like a copy!).