Light Up

Light Up is a logic puzzle game with simple rules and challenging solutions.

Place light bulbs on the grid so that every white square is illuminated. Use the numbered blocks as clues, work out where each bulb belongs, and solve each puzzle through logic and deduction.

How to play

Place light bulbs on empty white squares.

Each bulb illuminates horizontally and vertically until its light reaches a wall.

Two light bulbs cannot shine directly at each other.

Numbered blocks tell you exactly how many light bulbs must be placed directly next to them.

To complete a puzzle, illuminate every white square while satisfying all numbered clues and making sure no two bulbs illuminate each other.

Over 1,500 puzzles

Solve more than 1,500 Light Up puzzles with boards designed to test your observation, deduction, and problem-solving skills.

The rules are easy to understand, but finding the correct position for every bulb can become increasingly challenging.

Free Play

Solve puzzles at your own pace. Study the board, work through the clues, and find the solution without worrying about time.

Time Trial

Put your puzzle-solving speed to the test in Time Trial mode. Solve the board accurately while trying to complete it as quickly as possible.

Features

* Over 1,500 Light Up logic puzzles
* Free Play and Time Trial modes
* Simple rules with challenging solutions
* Logic and deduction-based gameplay
* Colorful pixel-art graphics
* Sound effects
* Puzzles suitable for quick sessions or longer challenges

Light Up is also commonly known as Akari, a classic grid-based logic puzzle built around deduction rather than guessing.

Study the clues, determine where every bulb belongs, and illuminate the entire board.