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