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Akari: Light Up
Akari Light Up cover with bulbs illuminating a logic puzzle board

Akari: Light Up

Created by Zarocer

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Developer
Zarocer
Genre
Puzzle
Version
1.0.0-rc.2
Published
October 7, 2026
Last updated
October 7, 2026
Game engine
HTML5
PLATFORMWeb Browser
DEVICESDesktop · Tablet · Mobile
CONTROLSMouse · Keyboard · Touch

A quiet logic puzzle where every light belongs.

ABOUT THE GAME

About Akari: Light Up

Akari, also known as Light Up, turns a grid into a compact deduction puzzle. Place bulbs on pale cells to illuminate the entire board. Walls stop the light, and their numbers specify exactly how many adjacent bulbs are required. Two bulbs must never see each other along an uninterrupted row or column. This Zarocer edition offers 40 original boards ranging from 5 × 5 to 8 × 8, an interactive tutorial and one shared daily challenge based on UTC. There is no time limit and no penalty for testing an idea. Mark excluded cells, fix mistakes and continue a locally saved game on the same device. Hints and undo let you finish puzzles as assisted attempts. Personal records are local; global rankings remain disabled.

How to play

Tap or click a pale cell to place or remove a bulb. Light every pale cell without two bulbs seeing each other. Match each numbered wall with exactly that many adjacent bulbs. Diagonals do not count. Use the × tool or right click to mark excluded cells. Keyboard: arrows to navigate, Space for light and X for a mark. Larger mobile boards also offer arrows and large action buttons. Hints and undo count as assistance. Restored games remain local.

Game screenshots

Akari bulbs and numbered clues during a game
Akari large logic puzzle board
Akari mobile board and controls

FEATURES

  • 40 campaign boards
  • UTC daily challenge
  • Tutorial, hints and undo
  • Local saves and high contrast

CONTROLS

  • Tap or click a pale cell to place or remove a bulb.
  • Light every pale cell without two bulbs seeing each other.
  • Match each numbered wall with exactly that many adjacent bulbs. Diagonals do not count.
  • Use the × tool or right click to mark excluded cells.
  • Keyboard: arrows to navigate, Space for light and X for a mark.
  • Larger mobile boards also offer arrows and large action buttons.
  • Hints and undo count as assistance. Restored games remain local.