Slack News Feed - Get the top posts from every Slack chat you're in.
Hubbos - Discover movies, books, apps and games in one place
Slack-News - Read news from multiple sources within Slack by just typing
Cookie Monster Quest - A King's Quest-style adventure game, starring Cookie Monster
Metachat - A news feed for unread Slack messages
The Uber Game - Can you make it in the gig economy?