Here is the full list of all 15 Dungeon Crawlers HD achievements.
Complete Chapter 1
Complete Chapter 2
Complete Chapter 3
Complete Chapter 4
Complete Chapter 5
Killed an enemy with one shot
Enemy had 1 HP left, and you missed!
Used the exact damage needed to kill an enemy
Killed an enemy with 10 more damage than necessary
Killed more than one enemy with an AoE attack
Found 1 Trophy
Found 5 Trophies
Found 10 Trophies
Found 15 Trophies
Found All 25 Trophies