Cool mug, that seemingly just promos the obscure, but important, MMO called "Meridian 59" on one side... and then a completely different game, called "Kemet 3" (Kemet: A Tale in the Desert) on the other side. Both games were published by MDO Game, so it was probably a mug given away at an event like Gamescom, or likewise. Pretty cool little piece of video game history!
