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
Complete 5 levels without any deaths
Stinky unlocked
Defeat desertboss
Unveil last level
Defeat cave boss
Find hidden entrance
Open passage with button
Reached cave world
Found hidden coin
Find hidden coin
Defeat mnt boss
Activate hidden btn
Reached mnt world
Complete 3 levels without any deaths
Picked up coin
Found hidden passage
Activate first artifact
Reached Desert world
First time on a boat
Defeat Skogstrollet
Collect first crystal
Find temple entrance
Find secret passage
Complete a level without any deaths
Open first secret door
Close encounter
Collect first coin