Gem Hart is a Mine Sweeper type of game.
Tap on a treasure chest to open it. Avoid the booby-traps.
Gems indicate that chest is touching at least one bomb.
A blue gem means it is touching one bomb.
A green gem means touching two.
An orange gem means touching three.
Two greens means touching four, etc.
Flag suspicious chests by holding your finger on it until a flag spins in.
Gem Hart stores "coins" for all the gems you find without touching a booby-trap. (No actual purchases in this game.)
Collect coins to earn the right to play the 11 x 11 and 13 x 13 grids.
Thats it! Mine Sweeper with a twist. Enjoy the colors and collecting!
(Copyright acknowledgement: images from Codea, courtesy of Daniel Cook - lost garden.com)