Frysbe - Frysbe: Make global friends at random and the fling app comes up with features to send messages to strangers from every corner of the world to expand your social circle.

Flinkit! - Web-hosted team building games for small and large companies

Yochat - Yochat app enables users to get to know about strangers from a large number of countries from around the world by video chatting with them.

Social Games in Slack - Polly brings your WFH team together with interactive games

Anygram - Anygram app offers features that let you meet new people so you can make new foreign friends practice native languages to learn something new.

Trivia for Google Chat - Team-building w/ fun quizzes, games right inside Google Chat