What date does the epic-con start?

I don't think it's a yearly thing. It's quite possibly just a one time event. Sometimes they have themes for restock wars, and I think that was one of them.

~ The EPICcon was last year. It's not a yearly event. It was a theme for a restock war last year.

There was no Epicon last year.

alas staff has not been retiring unobtainable Achievements.

Gah, if it's not a yearly thing, then I need to get going with getting those Zims stickers before they all become ridiculously expensive. x_x