Here is the full list of all 17 Dungeons: The Eye of Draconus achievements.
Gleobryn kills 50 enemys while mounted on Fluffers & eats 10 hot Fluffers dinners
Bolax eats a hot Fluffers dinner
All party members covered in chocolate at once
Three players selected at start screen
Both Gleobryn and Bolax were tea-bagged by Big Kahuna while Rose avoided such an unwholesome fate
Gleobryn misses 100 times with fireballs
Beat Ziegfield and Rohan without using a continue
Bolax kills 20 enemies while his rage attack is activated
Rose collects 25 bags of gold
Beat the game with Bolax and Gleobryn
Complete the game without using special attack
Complete the game without jumping
Complete the game with Gleobryn on single player
Complete the game without skipping any video and dialogue cutscenes
Beat the game with Rose on single player
Complete the game without using a continue
You bought, installed, and started the game