well sheesh...chill out...for one i didnt know it was pirated...the first time i downloaded this game it was a torrent file and i do now use the demo....and yes it can use mods....get off my back for the pirated copy....i didnt know i found it on google which lead to that site so i downloaded it and tried to play it and it wouldnt let me so i found out how to play it using google...so there you happy now!!!!! leave me alone about it!!!!!!dont send me messages about it!!!!!!!!

You got it from "piratebay.org". I think it's already a clear indication. Plus the fact that it was a torrent should have tipped you off, since they have a notorious reputation for being either virus'd or illegitimate. Am I incorrect to guess that you are a bit new to the Internet?

I do believe we have solved this problem with a bad copy of cortex.
Remember kiddies, illegal copies are like drugs. They're laced with harmful ♥♥♥♥, so go legit and save your computer.