No missable achievements (plus 20 unknown)
Sign in with Steam or Xbox to track your progress, and:
Participate in one search in multiplayer mode.
Find the frog Princess.
Walk 100 rooms.
Complete the seacrh of the dog William.
Use the compass in one search.
Use life potion 10 times.
Reach the rooftop terrace of the castle.
Complete the search of 3 princesses.
Finish with 50 spiders.
Finish with 100 slimes.
Complete one search before anyone in multiplayer mode.
Walk 250 rooms.
Use 50 keys to open doors.
Use invencibility potion 20 times.
Finish with 200 enemies using fire sword.
Unlock all rooms in one castle.
Kill 200 enemies using ice sword.
Walk 750 rooms.
Finish with 150 enemies using magic stick.
Organize 20 searchs in multiplayer mode.