BlackCase is a swap-based puzzle game. Your goal is to clear the board of all it's gems by swapping their positions. If you match 3 of the same color gem in a row, they will be cleared. It's a simple concept that's expanded to create some truly challenging puzzles that will get your brain working and have you addicted for hours! Download the BlackCase demo and try out the first 10 levels for free! BlackCase Features : 90 challenging levels, 11 unique game elements, random level generator, level editor, and battle mode.