It is an MMORPG made by bronies. You get to play as a pony and you can explore Equestria.The game is in development since 2012 and has made huge progress over the years. So far, you can explore Ponyville, Sweet Apple Acres, the Everfree Forest, Canterlot, Cloudsdale, an area called "The Heartlands" (that is HUGE!) and the Crystal Empire.There are also tons of quests you can solve, some of which are very complex already and the last Open Server Weekend introduced the experience levels and experience points, as well as level requirements for items and a big assortment of different armors.And the lantern is an item that was in the game during the Open Server Weekend in January. It was not meant to be in the game yet, but a bug let it spawn in the inventories of some players. Those players started spreading the lanterns around and gave them out to other ponies, but no one really knew where the lantern came from exactly. Also, another bug caused it that you couldn't unequip the lantern anymore once you let your pony carry it, so a lot of players began to say it's cursed and the lantern spawned a lot of creepy ideas and theories after the OSW was over.That OSW was really spooky and when I saw the lantern Twilight is carrying here, I was reminded on that lantern.