TangramPlayable
Drag the seven coloured pieces into the grey silhouette, tap to turn them 45 degrees and flip the parallelogram over; fill it and the shape turns vermilion. Eight shapes in all.
Ping PongPlayable
Drag or move the mouse to steer the red paddle; hits near the edge angle more sharply, the ball speeds up with every hit, and first to 7 wins.
Game of LifePlayable
Press Start to watch cells live and die, or draw on the grid and drop in classic patterns.
Space RocksPlayable
Hold the screen to steer and fire automatically, or use the arrow keys and Space; break the big rocks apart and survive wave after wave.
Four in a RowPlayable
Tap a column to drop a red disc and take turns with the computer; first to line up four across, down or diagonally wins, with three difficulty levels.
Bubble WrapPlayable
Tap a bubble to pop it, or swipe across to pop a whole row in one go; finish a sheet and a fresh one in a new color rolls in, with your count and best kept on top.
Drum MachinePlayable
Tap squares to build a 16-step beat and press Play, or pick one of three presets and change the tempo.
Tower of HanoiPlayable
Tap a peg to lift its top disk and tap another to set it down, moving the whole tower without ever putting a big disk on a small one; choose 3 to 7 disks or watch it solve itself.
GomokuPlayable
Take turns with the computer placing stones on the intersections; the first to make five in a row wins, and you can undo.
Falling SandPlayable
Press and hold to pour sand that piles up and slides down the slopes; switch to water that spreads flat or stone that holds still, and the sand changes color as you pour so it builds up in stripes.