Time Out - Break timer with micro-breaks for Mac OS X.
GameApart - Online board, card & party games on any video conference app
Focus - New Tab page that gives you a moment of calm and inspires you to be more productive.
Zoom Games - Curated and filterable list of games to try on video calls
StretchMinder - Work break timer with guided movement & breathing exercises
The Hike Game by Arc.dev - A "Choose Your Own Adventure" Zoom game for remote teams