Quick steps to get started
Tap or click a light to turn it on or off.
Each column is worth a number shown above it (8, 4, 2, 1).
Lime rows: light up the lights so they add up to the number on the right.
Violet rows: add up the lit lights and type the total with the on-screen keypad or your keyboard (digits, Backspace, Enter).
A solved row disappears.
From level 3 rows fall down the board: solve them before they land.
A landed row costs one heart; lose all three and the round ends.
Clear 40 rows to finish a level and unlock the next one on the level path.
Keyboard: number keys to type, P or Esc to pause.
What's it all about?
Binary Drop turns learning binary into a falling-blocks puzzle. Every row is a line of lights worth 1, 2, 4, 8 and up. Lime rows show a number: tap the lights so they add up to it. Violet rows are already lit: add them up and type the number. From level 3 the rows fall like Tetris, and each level adds more lights and more speed. A gentle first level teaches everything by watching, then streaks, rising melodies and confetti keep you going. Learn decimal-to-binary conversion without noticing you are studying.
Our player, ratings, and related picks
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Quick answers before you play
Platforms & genres
