Flipswitch

Two teenagers trying to pay for college are very proud to present Flipswitch:
A challenging minimal puzzler designed for both casual players and puzzler geniuses alike.

The concept is almost deceptively simple: pressing a button will toggle it on and off. However, some buttons also toggle others in the level. To solve each level, all the buttons need to be on at the same time. Sound easy? Try it for yourself, We dare you.

This is simple, yet complex. Easy, but brutally difficult. This is minimal, beautiful, and enthrallingly addictive. This is Flipswitch.