Light Up Grid

Light Up Grid is an original puzzle game designed for casual learners and game enthusiasts. Light every open corridor cell while obeying numerical wall clues. The full release includes 20 deterministic levels that can be replayed as often as you like. Lamps illuminate unobstructed horizontal and vertical corridors. Lamps cannot shine on each other. All open cells must be lit; numbered walls require the stated count of adjacent lamps. Click or tap any open square to toggle a lamp. Numbered dark squares are fixed walls. Place lamps along dead-end corridors first. Use zeros to eliminate positions. Check column and row conflicts before filling the last dark square. No online account, payments, remote game engine or subscription is required. The ZIP includes the HTML5 game, original artwork, implementation source, guidance and real gameplay screenshots. Installation is as simple as extracting the ZIP and opening game/index.html in a compatible browser. The included source files can be customized within the license terms. Browser compatibility beyond tested Chromium environments should be verified before marketplace publication.