Glitch was an MMORPG that ran from 2009 to 2012. It was perfect. (Okay, probably not entirely perfect.) It was a whimsical, no-combat sandbox game, with crafting and farming and creative use of game materials. I’d compare it to other games, except I haven’t played enough to compare it to. I fell in love with it. The day I logged in, I earned the “played 11 hours straight” badge before I’d even figured out what badges were or how long an in-game day lasted. (6 hours. It had a calendar. I was born on the 9th of Fever in Year 32.)
When the creators, Tiny Speck, realized it was never going to bring in the money they needed to keep it alive (in part because it was developed on Flash, which was great in 2009 and by 2012 was dying as a game platform), they announced that it would close. And they refunded all player subscriptions for the last year, and gave everyone 1500 in-game credits to spend on clothes and whatnot, and reduced the cost of teleporting and skills so that everyone could explore every last shred of the world of Ur they could reach. I wrote about it after it closed: What it meant, what it means.
After the game closed, they left the forums open for several months, and kept the snaps & in-game encyclopedia available. They decided to keep those around forever (the forums closed to new content in March of 2013), and they eventually released all the game content (except the name & trademarked logo) into the public domain, and have been actively supportive of players who want to bring it back.