The Morpheus Quest is an expansive interactive story in the "Choose Your Own Adventure" style. To play, you simply read a passage, click an option to proceed, and repeat until you reach an ending.
This particular interactive story is made to present as flash-fiction game, with each "playthrough" taking only a few minutes. You can accumulate over fifty achievements as you read through the more than 400 endings. Many achievements will unlock tools to enhance your experience, such as a diagram of possible choices or lists of endings. More information is available on the achievements page.
The setting uses Neil Gaiman's Sandman character, which is morally questionable without his consent. There's no profit being made from this, so perhaps he can forgive the transgression one day. I'm so sorry, Neil.
Everything here was written, coded, and designed by Ben SD. He's just some guy. You can email him, but he doesn't really check it: