Blast to start!
Play Iron Rain World free — a planet where iron rains, then catch the rain for iron. Hire mining rigs and watch passive Iron grow even while you're away. No…
1. Blast the glowing centre to earn your first Iron.
2. Open the Arsenal tab and buy your first Mining Rigs to start earning automatically.
3. Spend on Boosts to multiply taps and specific arsenal output.
✦ Signature Planet Destroyers scene — a planet where iron rains.
✦ Six tiers of arsenal from Mining Rigs to Void Engine.
✦ WebAudio sound with mute, haptics, reduced-motion — plays instantly, no download.