Here is the full list of all 32 Dungetris achievements.
Complete 3 worlds
Complete High Scaur
Build 4000 blocks
Complete Sleepy Hollow
Collect 50 materials
Upgrade 20 cards to max
Build a roof
Kill 50 elite monsters
Break the weapon
Die of Astral teleport
Die in less than 5 seconds
Complete the first world
Open new character
Kill Loic
Kill 100 monsters
Upgrade 10 cards to max
Collect 1000 coins
Build 1000 blocks
Kill 20 elite monsters
Achieve the level 10
Kill 5 elite monsters
Kill the shopkeeper
Kill 50 monsters
Full hand of cards
Rescue the smith
Kill an Evil Chest
Kill 10 monsters
Contract with Death
Gain a new level
Build 100 blocks
Die for the first time
Build the first castle