Time the eruption.
Not just the wait.
Tap the crater to draw magma — and watch pressure climb. Release early for a safe burst, or hold for overcharge and risk a wild blowout. It's an idle game that hands you the trigger.
A calm idle game with a nerve on it
Most idle games are about patience. Eruption Cycle adds a live decision on top: how far do you dare push the pressure before you let it go?
Charge, then choose
Every tap raises magma and pressure together. At 100% you can erupt for a burst and a tap buff — or hold into overcharge for more, with a blowout waiting past the safe line.
Conduits & catalysts
Fumaroles, lava tubes and mantle plumes pump magma while you rest. Catalysts sharpen every tap and multiply your flow across two upgrade tracks.
Research & collect
Spend magma down the branching Riftworks tree, and unlock a grid of minerals — from olivine to fire diamond — that pay a permanent bonus forever.
Cataclysm for crystals
When growth stalls, collapse the volcano into crystals for a permanent multiplier. Your research, minerals and landmarks all carry over.
Four beats, on repeat
Tap
Draw magma and build pressure at the crater.
Hold
Let pressure climb toward the overcharge zone.
Erupt
Release for a burst — take it safe or risk the blowout.
Grow
Spend on conduits, research and minerals, then push further.