This came as a shock to me, since no one around me realized that the game is closing. Most of us played Trickster Online donkey years ago, got to level 200+ and had tons of fun drilling, dying in dungeons and what not. I always thought that the game is making chunks from players, since my brother used to spend hundreds of dollars on it.
As said in the title, although the game closure announcement was posted back in January, no official explanation was given. My best bet would be something to do with the Korean server, which I have yet to check on the status. RIP, Trickster Online.