The Coronavirus App - Follow the epidemic in real time
PlayPlay.io - Chess and Ping Pong tracking in Slack
C-19 COVID Symptom Tracker - Self-report COVID-19 symptoms & help slow the spread 🇬🇧
Pinpon - The ping pong bot for Slack
Help with Covid - Covid-19 projects looking for volunteers
Ranked.Fun - An online leaderboard with your friends for your favorite games (Ping Pong, Foosball, Smash Ultimate, Chess, etc.)