Dig to start!
Play Bismuth Rainbow Mine free — stair-stepped rainbow crystals, then geometric growth, geometric gems. Hire diggers and watch passive Bismuth grow even…
1. Dig the glowing centre to earn your first Bismuth.
2. Open the Crew tab and buy your first Diggers to start earning automatically.
3. Spend on Boosts to multiply taps and specific crew output.
✦ Signature Mining Empire scene — stair-stepped rainbow crystals.
✦ Six tiers of crew from Diggers to Magma Tap.
✦ WebAudio sound with mute, haptics, reduced-motion — plays instantly, no download.