To play Small World Underground, first, get familiar with the 15 fantasy - themed creature races and 21 special powers. Each game turn, you'll spend points to draft different creature/power combinations. Then, use these combinations to claim subterranean locations. When you come across locations with relics or 'places of power', you need to conquer the monsters there before getting the benefits. At the end of each turn, count the points for the regions you hold. The player with the most points at the end of the game wins. It's recommended that you have played Small World before trying this game. When storing the game, keep it in a dry place to avoid damage to the cards and pieces. Also, handle the components gently to make sure they last a long time.