Houseparty - Brining empathy to online communication.
Wallpaper Engine - Wallpaper Engine enables you to use live wallpapers on your Windows desktop.
Booyah - Video chat with up to 12 friends at the same time.
Lively Wallpaper - What is it? Lively is a Free and Open-Source Software (FOSS) for animated desktop wallpapers.
Airtime - Hang out with group video, share music & videos
ScreenPlay - Open-source and cross-platform Wallpaper, Widgets and AppDrawer app.