Here is the full list of all 31 Bloody Trapland 2: Curiosity achievements.
Complete 20 levels without any deaths
Complete 10 levels without any deaths
Stinky unlocked
Unveil last level
Found hidden coin
Find hidden entrance
Defeat cave boss
Complete 5 levels without any deaths
Open passage with button
Defeat mnt boss
Find hidden coin
Activate hidden btn
Defeat desertboss
Picked up coin
Found hidden passage
Complete 3 levels without any deaths
Reached cave world
Activate first artifact
Complete a level without any deaths
Reached Desert world
Reached mnt world
First time on a boat
Defeat Skogstrollet
Find temple entrance
Collect first crystal
Find secret passage
Open first secret door
Close encounter
Collect first coin