Unlock the second floor

Unlock the third floor

Unlock the fourth floor

Finish all of the researches

Build a hotel room

Unlock the kitchen

Do an event for the king and the queen

Have all food on 5 stars

Have one food dish on 5 stars

Have a bar with all barrels purchased and filled

Have a successful adventure which had less than 30% chance to succeed

Reach the last reward from quests

Have 30 employees

Have 100.000 coins at once

Have a 5 star hotel room

Level up an employee to level 10

Have all 6 historical paintings