Here is the full list of all 25 LEGIE achievements.
Finish the game
Get the sunken key
Mine explosion
Tear down the wall
Find an axe and sharpen it
Examine the helmet
Get a handful of golden coins
Search through the tavern stash
Get golden fragments
Find 3 mine puffballs
Take a sip of healing water
Make a soup for the miners
Find the small key
Take a sip of healing wine
Switch the turnout
Block an enemy attack
Go and kill
Find the horse
Open the town gate
Pay for music
Win 5 times
Give the beggar a metal coin
Clean up the mess
Tap a tankard of beer