Gem Stack

Game description:

In the game, the player has to collect precious stones and make rings out of them. The playing field is a long road on which the stones move. The player can move them left and right. On the road, there are bonuses to collect. For example, some make the stones cut, some increase their number, and some change their color. There are also obstacles, which can destroy the previously collected stones. In the end, the stones are inserted into rings and the player receives a reward.