Lights On

Lights On is a classic puzzle game from the MS-DOS era that challenges your logic and spatial reasoning. The objective is deceptively simple: illuminate every light on the grid. However, each click you make not only toggles the state of the chosen light, but also flips the state of its directly adjacent neighbors—up, down, left, and right. Starting with a seemingly random arrangement of lit and unlit squares, you must strategically plan your moves to achieve a fully lit board. It's a test of pattern recognition and foresight, offering a satisfying mental workout with straightforward rules.