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