Dishonest about rewards so I uninstalled. Specifically: 80% puzzle peace drops are actually 20% even though they cost more gems and gold. This no longer seems to be developed as they're focusing on some upgrade of something they never got right. Uninstalled after playing at least 100 hrs. I recommend developers follow a model closer to infinity shooter and iron out bugs before working on an upgrade. Bad English/Grammar throughout. "Merge" is tedious and benefits are capped.