Here is the full list of all 24 Pixel Boy and the Ever Expanding Dungeon achievements.
Pickup a total of 100 keys
Obtain 10,000 coins
Complete Act 2 up to the first boss
Complete Act 3 up to the first boss
Complete Act 4 up to the first boss
Complete all Acts
Defeat Frank Indadark
Defeat Penta Vultis
Defeat the Final Boss
Defeat all four bosses in the game.
Spend over 500 coins on power ups
Obtain 150 Coins
Open 10 treasure chests
Hold 15 keys at a single time.
Complete Act 1 up to the first boss
Defeat Moby Richard
Obtain 1500 coins
Use each one time use power up at least once
Enter the Dungeon and receive your Pixel Powers
Complete the Tutorial
Open 100 treasure chests
Die 100 times
Try every power up in the game
Use Pixel Boys computer to check out a super awesome game.