On the Blink

Who wired this place?

Tap a room and its light switches—but so do the lights directly above, below and on either side. You're trying to turn every light off. The neighbors complicate things.

A room you've just turned dark can light up again with your next move. Work out which switches belong together, rethink a move, and find the combination that leaves the whole building dark.

Start with nine rooms. Move on to twenty-five, then forty-nine. Across three buildings and 66 levels, the rule stays the same. There's just more to think about.

Stuck? Ask for a hint. Undo a move or start again whenever you like.

• 66 levels across three buildings • Hints, undo and restart • Play offline • No ads or accounts