Here is the full list of all 25 Dungeon Of Dragon Knight achievements.
Get the best magic weapon
Carrying 200000 GP
Get the set of Wizard Suit
Get the set of General Suit
Kill a monster with only one hit
Learned at least 5 kinds of skills for one character
All characters wearing armors;
Put on a set of archer armors
Resurrect a player
Finish the first level
Kill 50 monsters
Finish the tutorial level
First time fall in the a hole trap
Wearing a set of baggar suit
Kill the first monster
Cast a spell
Quit tavern without spending a penny
Find a secret place
Click on witch 100 times
covered 90 percent of the dungeon tiles
Finish first three levels in old school mode
First time finish the game
Spent 100000 in one shopping time
Understand the story
Get the three kinds of magic sword