Scratch Raw Stone: Gem Master

About the game

Every rock in this shop could be a jackpot or a dud. You pay for a rough stone, then scrub at it with your pointer until the inside shows. Maybe it glows with deep colour. Maybe it's split by thin cracks. Maybe it's plain grey nothing.

The dealer pops in with a cash offer before you finish, and that's where it gets tense: grab the money or keep scraping and hope the gem turns rare enough to craft something worth more. Jewellery pieces end up on a collection shelf.

How to play

• Tap a stone to choose it, buy it and confirm. Hold and drag over the rock to scrape it open.
• For jewellery, tap a slot and place a gem template. Drag it around, pinch or scroll to resize it, and rotate it until it fits.
• Press the collect button to keep a finished stone.
• Double-click a jewellery piece to put it on your shelf. Click anything on the shelf to take it off again.

• Free
• No download
• Works on phones