Here is the full list of all 36 Treasure Stack achievements.
Use the sword power-up 50 times
Use the rainbow key power-up 50 times
Use a rainbow key to match three different colored chest blocks simultaneously
Use the sword power up to destroy 100 blocks in a single game
Use the bomb power-up 50 times
Use the bomb power-up to destroy 5 or more blocks in a single explosion
Use the anvil power-up 50 times
Use the anvil power up to destroy 100 blocks in a single game
Use all in-game power-ups once
Attain a max combo multiplier
Sustain a max combo multiplier for 60-seconds, or more
Destroy an active demon rune
Destroy 100 queued demon runes before they spawn
Match a key and chest of the same color to score points 100 times
Match a key to a group of 5, or more, chests of the same color
Earn your first loot chest
Earn 25 loot chests
Earn 50 loot chests
Unlock a Rare character skin
Unlock a Legendary character skin
Unlock 10 new characters
Unlock 50 new characters
View your character and grapple collection
Achieve a total score of 500, or more, in Solo Play
Achieve a total score of 1000, or more, in Solo Play
Achieve a total score of 2000, or more, in Solo Play
Play a Local Party match with 4 players
Play 25 matches in Local Party mode
Play 50 matches in Local Party mode
Compete in 10 Online Play matches
Challenge a friend to a private match in Online Play
Win a match in Online Play
Win 25 matches in Online Play
Win 10 consecutive matches in Online Play
Achieve Silver Tier ranking in Online Play
Achieve Gold Tier ranking in Online Play