I'm unable to sit still and watch a movie unless I keep my hands busy. Typically, when I watch a movie, I have Media Player Classic take up one side of the screen and a mindless game take up the other side of the screen. I focus my eyes on the movie while focusing my fingers on the game, which is usually either Tetris, 2048, or Hyper Rogue. I used to do Binding of Isaac, but I found that it took too much concentration.

The three games that I've been using have gotten repetitive, so I need to find something else. So, I'm looking for games that

1. Are simple enough to be played out of the corner of my eye.

and

2. Can be played in small windows.

I'm open to suggestions that are browser-based or available on Steam.