Linia - You will never look at colors the same way...
PlayPlay.io - Chess and Ping Pong tracking in Slack
Speedcube - A simple and elegant Rubik's cube solve timer
Pinpon - The ping pong bot for Slack
Tilespace - A mind bending puzzle iPhone game
Ranked.Fun - An online leaderboard with your friends for your favorite games (Ping Pong, Foosball, Smash Ultimate, Chess, etc.)