Pressure vents bubble up the slopes of an obsidian volcano, each puffing a stack of lava bubbles that tells you which stone it needs. Plug the right vent with the right-sized stone at the right moment and the mountain keeps simmering; miss the timing or bring the wrong rock and the pressure ring keeps climbing toward an eruption. Every eruption that gets through costs a heart and buries a house in your village — survive all six waves to tame the mountain. Rendered in chunky pixel-arcade style: black obsidian blocks, animated lava glow, ember particles and heart-shaped lives.
How to play
A vent grows a square pressure ring — click / tap the vent while the ring is inside its white target band to drop a stone and seal it (dead-centre hits flash PERFECT! for bonus points).
The vent's bubble stack shows the stone size it wants; press 1, 2 or 3 (or tap the stone buttons under the canvas) to pick the matching stone before you tap.
Wrong size, too soon or too late bounces the stone off, resets your combo and nudges the pressure up — score builds with stone size, timing precision, wave number and combo streak.
Each wave demands a quota of plugs (shown top-centre); clear it and the village rebuilds before the next, harder wave with faster-pressurising vents.
An eruption you let through costs one of your 3 hearts and destroys a house — at zero hearts the village is buried. Press P or Esc to pause, Enter or click to start and retry.