The Festival Floppies — incredible treasure trove of odd and beautiful DOS shareware, emulated in the browser
A-Painter — Tilt Brush clone in the browser, with simple sharing and saving of drawings
botsplaining — dudes arguing with a Twitter bot
Jackson Hole Town Square — over 1,600 people are watching this stream and chatting relentlessly; it’s like Deer in real life
Blackbox — maybe the best animated GIF I’ve ever seen, by pixel art legend Paul Robertson
Spaceplan — clicker game with a storyline