The world of startups is harsh. Some projects fail, don't find product market fit or if they're lucky get acquired. As a designer you get to keep the archives. Here are some projects I loved that didn't make it.
Polywork
A new type of social networking App.
DISCONTINUED
Triptastic
A travel audioguide everywhere around the world.
DISCONTINUED
Sugar
A social health App to go out and do things with your friends.
Lingojam
A mix of Southpark and Duolingo to learn conversational german.