Here is the full list of all 15 Dungeon Rats achievements.
"I have a feeling we're not in Kansas anymore"
Beat the game on Easy Ironman
Beat the game on Normal Ironman
Beat the game on Hard Ironman
Win an all-expense paid trip to Maadoran!
Recruit all 11 party members
Beat the game solo on Easy
Beat the game solo on Normal
Beat the game solo on Hard
Beat the final fight and earn your freedom
Pay the guards a visit
Have a chat with the Emperor
Eliminate all three gangs
Fight your way to the upper level
Prove your worth to Barca