Wonderful programme. My company and my workers always use this for home office.
Simple OKR - Track, measure and manage OKRs
Trivia for Google Chat - Team-building w/ fun quizzes, games right inside Google Chat
Tability - Get your goals out of spreadsheets
Social Games in Slack - Polly brings your WFH team together with interactive games
OKRStudio - Connect Trello cards to OKRs. Manage OKRs inside of Trello
Flinkit! - Web-hosted team building games for small and large companies