Buildings Cost
Many buildings in the game require rubies or tokens (construction & upgrade) to build and to upgrade. Since not all players have unlimited quantity of rubies (not all of us are "ruby whales" aren't we ?) and the fact that tokens are not so easy to acquire, it is important to know the building's costs in advance, to prepare and plan your game play in a more precise and smart way. The list is divided to "Ruby buildings: those that all (or some) levels required you to use rubies and "token buildings": those that all (or some) levels required you to use tokens.
