FingerSports
Finger Sports is a PC game where two players compete in different mini sports games, with one particularity: they don't use any controller or keyboard, they control the game using their fingers.
At the end of the timer, the player with the most points wins the game. The two games offered in this version, a Basketball game and a Football game.
All you need to play is a webcam, as well as two brightly distect colored papers wrapped around players fingers.
Github repo
Youtube video