← → rotate · ↑ thrust · SPACE fire · the field wraps
A big rock becomes two middles, a middle becomes two pebbles. Every 500 points adds another rock to the field.

Bounce from platform to platform and climb as high as you can.

Classic snake on canvas. Arrows, WASD or swipe.

Scroll from the surface to the Challenger Deep, 10,994 metres down.

Bricks, lives and power-ups, with the pace ramping as you clear them.

A real Gray-Scott solver. Eight regimes - mitosis, coral, worms, solitons, fingerprint - and the feed/kill map that makes them.

An explicit leapfrog finite-difference solver. Resonance, standing waves and superposition, with the measured period next to the theory.

Spend gold each season to grow a village to 24 people before the year runs out.

Turn-based tactics on a hex-free square grid: move costs, line of sight and a real AI.