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