Here is the full list of all 50 The Dungeoning achievements.
Kill your ghost 10 times
New Game ++
New Game +++
New Game ++++
Survived 30 levels
Opened 50 chests
Read 10 scrolls
Read 50 scrolls
Get Burned 10 times
Smash 50 Blocks
Smash 100 Blocks
Open 50 crates
Open 100 crates
Collect 500 gold
Collect 1000 gold
Kill 50 rats
Explode 50 barrels
New Game +
Kill your first enemy
Kill 20 Enemies
Kill 100 Enemies
Survived first level
Played 10 games
Opened 10 chests
Drink a potion
Drink 50 potions
Fire 100 Arrows
Get poisoned 10 times
Smash 10 Blocks
Open 10 crates
Collect 100 Gold
Kill 10 bats
Kill 50 slimes
Kill your own ghost
Kill 30 ghosts
Explode 10 barrels
Kill 1000 Enemies
Survived 100 levels
Played for 30 minutes
Played for 60 minutes
Sample 500 fine potions
Fire 1000 Arrows
Fall too far 10 times
Cut down 50 bushes.
Cut down 200 bushes
Cut down 500 bushes
Kill a mimic
Kill 10 chest monsters
Kill 10 Witches
Kill 10 eyesores