NCsoft's Punch Monster, you're not alone. Apparently the few people who have heard of it didn't want to play it, as the Korean gaming giant is closing down the casual MMO as of February 15th.
ThisIsGame says that it's been some time since NCsoft pushed a major update onto the game's live servers, and a company spokesperson confirmed as much. "We decided to close it because we have barely sustained the Korean service. We will continue to develop and publish casual games with [the] experience we have gained so far."
Punch Monster will remain playable in China and Japan for the moment, albeit under the name Blue Tears.