Construction kit
Calculator
A simple calculator with a LOT of knobs. Build your dream one.
Interactive shaders
Background
Living wallpapers that react to your mouse.
Arcade
Brick Break
Bounce the ball, clear the wall.
Timekeeping
Clocks
Eight clocks & timers, drawn with code.
Eye test
Color Guesser
Read a color, guess its HEX code.
Reflexes
Reaction Time
Click the instant it turns green.
Turntable
Audio Player
Load a track, scratch the disc, play it back.
Surprise me
Take me to a random…
Website, video, image, Reddit, or account.
2 Players
Stickman Fight
Chop off limbs — last head standing.
Click speed
CPS Test
How fast can you click?
Vs robot
Rock Paper Scissors
Beat the robot in a showdown.
Elastic prank
Stretch!
Drop in a face and stretch it around.
Two players
Tic-Tac-Toe
Beat a friend — or the computer.
Gomoku
Five in a Row
Line up five stones to win.
Number puzzle
Sudoku
4×4, 6×6, 9×9 or your own size.
Mental math
Speed Math
10 problems, 5 levels — beat your time.
Famous faces
Guess Who
Name the face before it comes into focus.