Trivia for Slack - Fun team-building with 1000s of quizzes right inside Slack
Songlio - Free musical guessing game: race friends to name that tune
Thursday - Thursday is where remote teams do their socials.
SongTrivia2.io - Songtrivia2.io is a browser and mobile blind test game that allows you to play in real time with your friends or against strangers. Several musical themes, difficulty and game modes are available to create lots of different musical quizzes.
Flinkit! - Web-hosted team building games for small and large companies
SongPop - The world's biggest music trivia game. Now even better.