Here is the full list of all 53 Dicey Dungeons achievements. It takes around 35-40 hours to unlock all of the achievements on Windows.
Complete all six bonus round episodes in hard mode.
Complete any five bonus round episodes in hard mode.
Complete any four bonus round episodes in hard mode.
Complete any three bonus round episodes in hard mode.
Complete any two bonus round episodes in hard mode.
Defeat a boss with full health.
Complete an episode as Witch with four prepared slots.
Do 12 or more damage in one turn by throwing dice.
Do more than 40 damage in a single attack.
Have max health of 64 or higher.
Lock all enemy dice.
Use the Dragon's Tooth.
Inflict 5 or more Burn in a single turn.
Inflict 5 or more Freeze in a single turn.
Complete any bonus round episode in hard mode.
Defeat Lady Luck.
Complete all six parallel universe episodes.
Complete all 36 regular episodes.
Complete all six elimination round episodes.
Stack 30 or more total Poison on an enemy at once.
Stack 10 or more total Poison on an enemy at once.
Complete the episode named "Losers, Weepers".
Complete any five parallel universe episodes.
Complete any five elimination round episodes.
Complete the episode named "Countdown".
Complete any four parallel universe episodes.
Use the same gadget three times in one turn.
Complete any four elimination round episodes.
Complete the episode named "The Inevitability of Rust".
Complete any three parallel universe episodes.
Hatch an egg.
Complete any three elimination round episodes.
Roll 10 ones in a row.
Complete the episode named "You Choose, You Lose".
Use a Finale card.
Complete any 12 episodes.
Complete any two parallel universe episodes.
Inflict 5 or more Shock in a single turn.
Complete any two elimination round episodes.
Become a furry dice.
Complete any 9 episodes.
Do more than 20 damage in one turn with Dagger.
Complete the episode named "Finders Keepers".
Complete any 6 episodes.
Complete all six episodes for any one contestant.
Complete any parallel universe episode.
Complete any elimination round episode.
Use your limit break twice in one turn.
Defeat an enemy on your first turn.
Complete the episode named "Curse of Greed".
Defeat a boss with four or more battle axes equipped.
Unlock episodes.