If you happen to get all 3 gems required build a tower during a single building phase you can instantly build the tower.If you get the right combination of gems and towers you can combine them to create a stronger tower with special effects depending on which gem/tower combination you got.MERGE (^^) Replace the selected gem with the same type two levels higher.MERGE (^) Replace the selected gem with the same type one level higher.SELECT (Check) Keep the selected gem only.To finish the build phase, players must select one of the options below: Each gem you place will be random unless you have skills that increase the chances for certain types of gems. The player must have a balance between building the maze itself and having gems in the right place in order to maximize their effectiveness. Players must place 5 gems during the build phase and then pick only one gem that will remain while the rest will be turned into stone. The game consists of a build phase and an attack phase.

In response, players can combine gems and towers to increase their damage. Waves get increasingly difficult as the game progresses and each wave will have different skills that add to the challenge (magic immune, ability to disarm, flying, physical immune, etc).

Players must defend their Gem Castle by constructing a long winding maze that creeps will follow and allow for their towers to do maximum damage before they reach the Gem Castle.

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