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.
SudokuPlayable
Tap a cell and pick a number so every row, column and box holds 1 to 9 once; pencil in notes, and wrong entries turn red.
Game of LifePlayable
Press Start to watch cells live and die, or draw on the grid and drop in classic patterns.
15 PuzzlePlayable
Tap or swipe tiles into the gap until the numbers are in order.
Drum MachinePlayable
Tap squares to build a 16-step beat and press Play, or pick one of three presets and change the tempo.
SokobanPlayable
Push every crate onto a red mark; crates can be pushed but never pulled. Ten levels from easy to tricky, with undo, restart and level select.
Decision WheelPlayable
Write a few options, press Spin and let the wheel decide.
Pet the CatPlayable
Stroke the big cat with a finger or the mouse: rub its head and chin and it squints and purrs, rub its belly too long and it swats you, and once it is fully content it rolls over.
MemoryPlayable
Turn over two cards at a time, keep the matching pairs, and clear the board in as few moves as you can.
Whack-a-MolePlayable
Bonk the moles as they pop out of nine holes; golden ones are worth three, leave the hedgehogs alone, 30 seconds a round.
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.