Binary Place Value Game Builder

Turn binary place value into a playable lamp puzzle. Choose a visual theme and an age band to build Bit Flip: six browser-game levels where players switch lamps to match a target number. Includes hints, restart, keyboard controls, and mental-addition challenges for ages 11–13. Designed for Codex with file and test access. Requests editable source, setup instructions, and a verification report. No ads, accounts, or countdowns in the game.