Bit Quiz 16

A love letter to retro computing you can play: flip bits on a glowing CRT to build binary numbers, from 4-bit nibbles to 16-bit words, across 7 brain-building levels.

Bit Quiz 16 turns the glowing heart of a retro computer into a puzzle game. Toggle bits on a CRT terminal to match target numbers, and discover how patterns of ones and zeros become characters, colors, and everything else inside a machine. Every level starts with a clear mission and simple instructions: encode decimal numbers in binary, one bit at a time. Seven brain-building levels take you from 4-bit nibbles all the way to 16-bit words, with undo, level navigation, and detailed timing and error-rate stats to sharpen your skills. Redo any level to beat your best. The look is pure retro terminal: CRT scanlines and phosphor glow, square-wave chiptune sound, and ASCII art on every screen. Game Center leaderboards and achievements track your climb. Curious how computers really work? Seven short, easy-to-read help files offer a mini intro to binary encoding — how bits build nibbles, bytes, and data structures, and how simple patterns represent text, color, and data. No ads, no tracking, no in-app purchases.