Just received word that Game Neverending is back online! This game was extremely innovative, but played by very few people during its limited beta test. One of the very first web-based MMOs, Game Neverending was eventually shut down as the Ludicorp team focused their efforts on Flickr.
Last year, Cal Henderson showed me an internal server running the original GNE code, but it wasn't accessible outside the company intranet. Over the last year, Cal and Myles have ported the old ASP codebase to PHP, and it's now live for anyone to play for the first time.
(You'll need to be signed in to Flickr for the link to work.)
Here's the April Fools-themed message that announced it publicly, a parody of Jerry Yang's internal emails. More than an April 1 prank, I've been told that it'll be around longer than today only but completely unsupported. Hooray!
Update: After much speculation, I'm happy to announce GNE is still alive on April 2. I spent all yesterday playing, got up to Level 7, built a lovely house in Fierov Heights, and had enough making points to build the final item of the game, a Game Neverending. Unfortunately, I was about $8 million short to buy the ingredients. (Stewart, Caterina, Ben, and five other Ludicorp employees must be purchased in the back room of a mash pub for $1M each.)
Everybody pooled their resources to buy the ingredients, and at about 8pm, a Game Neverending was created. We passed it around so everyone could hold it, and then handed it back to its creator so she could win the game. Screenshots here.
Update: GOD announced it's shutting down in an hour (about 11am PST). As yeoz said, "GNE is a shared temporary hallucination."
Aaand, it's gone. I managed to send it off by winning the game in the last four minutes. I captured video of building the GNE and using it to win the game. Striatic also captured the last few minutes of the game.