PlockySmall games. Big fun.
All gamesPuzzle / Free browser game

Light Up

YOUR NEXT LITTLE OBSESSION

Set the lamps so the whole gallery glows, and no lamp shines on another.

Free to play · Right here in your browser
A LITTLE FRIENDLY COMPETITION

Community leaderboard

Best fastest solves, shared by players. Lower is better.

Community submissions · unverified
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A LITTLE ABOUT THE GAME

Set the lamps so the whole gallery glows, and no lamp shines on another.

The gallery is dark. Place lamps on the floor: each one lights its own square and every square in its row and column, until a wall gets in the way. Light the whole floor without any lamp shining on another, and give each numbered wall exactly that many lamps beside it. Every puzzle is made fresh in your browser and has exactly one solution, found by reasoning alone. Small puzzles need only plain steps; Medium and Large ask for the occasional "what if". Mark squares that can't take a lamp with a dot, undo freely, and ask for a hint that explains its step. Play by tapping, with the mouse or with the keyboard, and put your fastest solve on the Plocky leaderboard for each size.

Three sizes: 7×7, 9×9 and 11×11A fresh puzzle every time, one solution eachLamps, dots, undo and clearHints that explain the next stepFastest-solve leaderboards, one per sizePlayable by touch, mouse or keyboard

Progress and preferences stay in this browser. Opening the game in another browser or device starts fresh.

How to play

Tap
Set or take away a lamp (or a dot, with the Dot tool)
Long press, right-click
Mark a square with a dot: no lamp here
Arrows, Space
Move between squares and set a lamp
X
Set or take away a dot
U, Ctrl+Z
Undo
H
Hint (the puzzle becomes practice)
N
New puzzle

Tap a square for a lamp; tap again to take it away. Long-press, or use the Dot tool, to mark a square that can't hold a lamp.

UP FOR SOMETHING DIFFERENT?Tents