I got it in a contest where I had to post a silly, funny, or weird screenshot of the game. I posted the most unfunny, not clever and retarded picture which I deleted not by accident, and to my surprise I won. I was so happy I went out to activate it on my account without to question
I do not know if I am supposed to brag because the DLC is now worth over a fucking $1146 and I already activated it on my account so I can not sell it.
I am dead inside, because of that. I could finally buy a miningGPU.