Gem Run: Gem Stack is recommended as a vertical-version running arcade game. With 3D gems and tools, you need to collect enough mines, process and mold the mines and put the diamonds on the rings. The more gem rings you make, the more money you can win. When you have enough money, you can unlock rings, colors, and hands in the shop. Gem Run Gem Stack, gem collecting game, arcade game, mobile game, puzzle game, diamond rings, mining game, 3D game, casual game, money making, unlock features, gemstone, vertical game, addictive game, best mobile games, free game, iOS, Android, coin mania, gem stacking