I am inspired by this: the Ventilastation, a low tech circular display based on a fan, a LED strip, and a microcontroller, designed for games.

https://www.youtube.com/watch?v=IoFkcZeGjOQ

Not planning (yet) to actually run a game on it or on its emulator, but the concept is interesting. I am curious what games would lend themselves well for a circular display with circular gameplay. So I projected my "linear" game engine output onto a circle and got a first game prototype running.

The top part of the screen is stretched horizontally, the bottom pixel row is compressed into a single pixel. Gameplay could work best somewhere in the middle. Scrolling up and down would translate to moving inwards and outwards of the circle. To make the gameplay truly circular, the game would need to wrap around seamlessly left-to-right.

Normal game:

Projected onto circle:

With a simple scanline effect to make it look more like a ventilastation: