Here is the full list of all 54 Storm Tale 2 achievements.
Collect 9 keys
Collect 350 golden tiles
For being the Top Score in 15 levels
Complete 20 new levels
Destroy 60 earth obstacles
Make a chain of 5 bonus power-ups
Play 2 days in a row
Play 5 levels in a row
Collect 4 chests
Collect 120 gold nuggets
Make a chain of 3 bonus power-ups
Make a combo of 34
Make a combo of 26
Buy 1 building
Make a combo of 18
Collect 510 gold nuggets
Collect 850 gold nuggets
Collect 1000 golden tiles
Collect 1940 golden tiles
Play 14 levels in a row
Play 25 levels in a row
Buy 7 buildings
Buy 14 buildings
Explode 6 TNT barrels
Explode 18 TNT barrels
Explode 32 TNT barrels
Use the Sword power-up 5 times
Use the Sword power-up 10 times
Use the Sword power-up 20 times
Make a chain of 7 bonus power-ups
For being the Top Score in 32 levels
For being the Top Score in 60 levels
Collect 20 chests
Collect 80 chests
Play 4 days in a row
Play 6 days in a row
Destroy 190 earth obstacles
Destroy 260 earth obstacles
Break 40 ice cubes
Break 108 ice cubes
Break 180 ice cubes
Break 25 lava stone
Break 64 lava stone
Break 82 lava stone
Complete 45 new levels
Complete 90 new levels
Use Magic Staff power-up 5 times
Use Magic Staff power-up 12 times
Use Magic Staff power-up 20 times
Destroy 50 metal tiles
Destroy 130 metal tiles
Destroy 190 metal tiles
Collect 20 keys
Collect 49 keys