Make your factory get profit from simple rocks. How? Merging them and get gold and gems to better gems! Upgrade your production lines to get faster. Beware of Unlock new lines to achieve better gems!

Gem Inc Features:

- Tap to lines to make them faster!
- Tap to get more rocks from sky
- Upgrade lines to avoid stucks!
- Sell the best gem you have to make profit!

So, unlock new lines to get better gems, merge better gems to make profit, it's that simple!