Here is the full list of all 31 Peace, Death! 2 achievements.
Fully complete the quest centered on the Bureaucrat.
Fully complete the quest centered on the Paymaster.
Fully complete the quest centered on the Concierge.
Fully complete the quest centered on the Coffeeman.
Fully complete the quest centered on the Mechanic.
Fully complete the quest centered on the Apostate.
Fully complete the quest centered on the Scientist.
Become co-founder of the Order of the Honest and Valiant.
Become head of the Reapers Union.
Become head of the Reapers Union and complete every Union member's quests.
Complete any level 10 catastrophe and successfully make it through the level.
Complete a level 10 catastrophe in less than 40 seconds and successfully make it through the level.
Complete each catastrophe at least once.
Complete 12 common contracts.
Complete 9 uncommon contracts.
Complete 6 epic contracts.
Complete 3 legendary contracts.
Buy 20 Blue Hearts
Complete 5 quests given by War.
Complete 5 quests given by Pestilence.
Complete 5 quests given by Death.
Complete 5 quests given by Famine.
Complete a level with four Warlock imps around you.
Sort a Sumoman correctly after he generates new signs.
Sort a Pirate correctly while all his chests are closed.
Sort a Murderer correctly at the very last moment before he attacks.
Pass three inspections from the Bureaucrat in one level.
Sort a Croupier correctly after he uses up all his cards.
Sort a Monster Hunter correctly while there are three or more monsters on a level.
Sort a Sufferer correctly while he has more than 10 signs.
Complete a level with at least one Parasite present.