Here is the full list of all 37 Stonerid achievements.
Complete all bonus levels
Get all crowns on normal or hard mode
Complete 10 bonus levels
Clear all levels from toxic substances on normal or hard mode
Get 10 crowns on normal or hard mode
Clear 20 levels from toxic substances on normal or hard mode
Complete the game
Complete the Cemetery
Collect 2,000 gemstones
Collect 15,000 toxic substances
Complete the Swamps
Collect 10,000 toxic substances
Clear 10 levels from toxic substances on normal or hard mode
Get 50,000 points in one level
Complete the Caverns
Collect 1,000 gemstones
Kill 200 monsters
Complete the Winterland
Get one crown on normal or hard mode
Collect 5,000 toxic substances
Complete the Endless Autumn
Complete one bonus level
Collect all gemstones in one level on normal or hard mode
Die 200 times
Kill 100 monsters
Collect 500 gemstones
Die 100 times
Clear one level from toxic substances on normal or hard mode
Kill 50 monsters
Complete the Dark Forest
Find all secrets in one level
Complete one level on easy mode
Complete one level without dying on normal or hard mode
Complete one level on hard mode
Die 10 times
Complete one level on normal mode
Complete a tutorial