Dig to start!
Play Sapphire Shaft Co free — a shaft of deep blue stone, then purer blue digs deeper pay. Hire diggers and watch passive Sapphires grow even while you're…
1. Dig the glowing centre to earn your first Sapphires.
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 — a shaft of deep blue stone.
✦ Six tiers of crew from Diggers to Magma Tap.
✦ WebAudio sound with mute, haptics, reduced-motion — plays instantly, no download.