$2.99
About
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
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What's New in On the Blink
1.0
October 29, 2026




