It is the root of all computers, the 0s and the 1s. Videos, images, games, 3d graphics, they can all work thanks to the power of the binary numbers.
What would a casual game made with this concept in mind can be? Play "Binary 01" and find out!
Engine: Unity - https://unity3d.com/
Art: Inkscape - https://inkscape.org/en/
Sound & Music: Bosca Ceoil - https://boscaceoil.net/
Kenney's Game Icons pack: https://kenney.nl/assets/game-icons