Here is the full list of all 49 DungeonUp achievements.
Opened 1,000 doors.
Used Soul Stone to speed up the free key.
Finished Story Mode without dying.
Finished Zone 5 in Story Mode.
Hoarded 10,000 gold.
Reforged the Fire Sword.
Defeated the Dwarf Captain three times.
Bought three Red Keys.
Defeated the Vampire King three times.
Had 18 keys in your keybag.
Defeated the Skeleton King three times.
Found 100 Secret Paths.
Spent 10 Soul Stones.
Opened all doors in a zone.
Killed 1,000 monsters.
Finished Zone 4 in Story Mode.
Killed 10 monsters of the same kind in a row.
Finished Zone 1 without using a Bomb.
Used a Soul Stone to respawn.
Used a Soul Stone to purchase an item.
Finished Zone 3 in Story Mode.
Finished Zone 3 facing the Dwarf Captain directly.
Killed a boss with one blow.
Finished Zone 2 in Story Mode.
Killed a non-boss monster with one blow.
Killed all monsters in a zone.
Finished Zone 1 in Story Mode.
Finished the tutorial.
Finished Story Mode.
Defeated the Illusionist Lord three times.
Defeated Zreluhm three times.
Defeated the Lamp Genie three times.
Finished Zone 2 without the Cross.
Finished Zone 4 without the Antimagic Ring.
Finished Zone 5 without the Fire Sword.
Finished Story Mode without buying keys.
Finished Story Mode without buying anything.
Finished Zone 1 in Maze Mode ten times.
Finished Zone 2 in Maze Mode ten times.
Finished Zone 3 in Maze Mode ten times.
Finished Zone 4 in Maze Mode ten times.
Finished Zone 5 in Maze Mode ten times.
Picked up 100,000 gold.
Finished Zone 1 in 5 minutes.
Finished Zone 2 in 10 minutes.
Finished Zone 3 in 15 minutes.
Finished Zone 4 in 20 minutes.
Finished Zone 5 in 25 minutes.
Revived the Dwarf King.