Tap the vein!
Gem Grotto Tycoon drops you into a glittering crystal grotto and dares you to build the sparkliest gems empire on the web. It all starts with a single tap on the vein: each press mints a little Gems, and Mine deeper vein…
1. Tap or click the vein (or press Space) to earn your first Gems.
2. Open the Buildings tab and buy Little Prospectors to start earning Gems automatically.
3. Reinvest into stronger helpers like Turbo Prospectors and Cosmic Prospectors as costs climb.
✦ Sparkliest gems theme set in a glittering crystal grotto
✦ Five upgradeable helpers from Little Prospectors to Cosmic Prospectors, each with its own boosts
✦ Idle income that keeps earning while the tab is closed, with capped offline catch-up