What Gem Master needs is more variety!
Therefore, I would like to announce that I am working on a major update to the game, which will introduce different "arenas" for matches to be played on, among other improvements.
Instead of the same plain field each time, fields will now feature walls and obstacles, creating additional strategic opportunities or pitfalls.
However, that comes together with a decision to increase the price of the game. Of course, the existing players will not be affected; if you own Gem Master by that time, you will just receive the update for free.
The update is planned to go live in September.