Here is the full list of all 17 The Explorer of Night achievements.
Congratulate!
You have defeated first boss
Jump on the frog
Use any weapon to stop the enemy
Find and use gear
Find the key and open the door
Use dynamite for its intended purpose
Run away from the stone
You have defeated second boss
Don't get wet
You have defeated last boss
Don't get lost in the dark
Beware of the pikes
Fix platform mechanism
Thank you for playing
You don't have to do it!
Destroy pike