first off, SPOILER warning, .
I am curious - having revisited Dungeon Master I had to re-think of it in terms of goals and objectives. From this I created a 20-point list of game-goals: hit all of them and you win the game.
Spoiler
Choose your Champions.
Welcome: learn the basics of combat, navigation, puzzles and traps.
Complete at least 4 of the rooms in 'Choose Your Fate'.
The Riddle Room needs at least 3 unique items, found in the upper dungeon.
You need at least 3 Iron keys to progress beyond the Riddle Room.
Get past the Void
Find the scorpions to get the Magnifier.
The Magnifier will unlock the Ruby Key.
Use the Corbamite to solve a puzzle to get one of the RA Keys.
Go deep to get the last 2 RA Keys
The Ruby Key gives access to the path to the Master Key.
To Get the Firestaff itself requires the Master Key.
The Firestaff itself lies locked at the heart of the Tomb of the Firestaff.
The Tomb of the Firestaff will need 4 RA keys, found throughout the dungeon.
Get the Firestaff from the Tomb of the Firestaff, but it needs a Fire Gem.
The Fire Gem lies sealed in rock beyond the fiery Dragon.
The Winged Key unlocks the back-passage to the Dragon's Lair.
Use ZO KATH RA to release the Fire Gem.
Combine the Firestaff with the Fire Gem to get the Fused Firestaff.
Use the Fused Firestaff to imprison Lord Chaos.
Welcome: learn the basics of combat, navigation, puzzles and traps.
Complete at least 4 of the rooms in 'Choose Your Fate'.
The Riddle Room needs at least 3 unique items, found in the upper dungeon.
You need at least 3 Iron keys to progress beyond the Riddle Room.
Get past the Void
Find the scorpions to get the Magnifier.
The Magnifier will unlock the Ruby Key.
Use the Corbamite to solve a puzzle to get one of the RA Keys.
Go deep to get the last 2 RA Keys
The Ruby Key gives access to the path to the Master Key.
To Get the Firestaff itself requires the Master Key.
The Firestaff itself lies locked at the heart of the Tomb of the Firestaff.
The Tomb of the Firestaff will need 4 RA keys, found throughout the dungeon.
Get the Firestaff from the Tomb of the Firestaff, but it needs a Fire Gem.
The Fire Gem lies sealed in rock beyond the fiery Dragon.
The Winged Key unlocks the back-passage to the Dragon's Lair.
Use ZO KATH RA to release the Fire Gem.
Combine the Firestaff with the Fire Gem to get the Fused Firestaff.
Use the Fused Firestaff to imprison Lord Chaos.
Secondly - what would a list for the other games look like? Especially Chaos Strikes Back - but also Dungeon Master 2 and Theron's Quest?
Surely no-one can summarise Chaos Strikes Back... way too convoluted...