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