do you need to register an account with Paradox to be able to access steam workshop mods?
I've got no account and have been using mods fine... although I have always browsed the workshop through Steam directly (and just click subscribe, it downloads the mods and they appear in C:S)
I unlocked the Hadron Collider last night... Talk about OP!!! It instantly acts as capacity for 1,000,000 for each of elementry, high school and universities, with no requirement to have good travel routes to it and perfect coverage of absolutely every part of the city... My population almost instantly went to ~100% highly educated, loads of stuff upgraded, and could happily bulldoze every other education building if I want...
Kind ruins the late game at that point to be honest - I haven't unlocked it yet but I assume the Medical Center does the same thing for healthcare