There is all sorts of craziness going on now with games. My dad and I recently tried to have a LAN party of DOW2, he had physical copies except for soulstorm which was the steam version and I had only steam versions, We could not play on the LAN at all, all multi player options had been removed except for online for the steam versions, so we could only play Soulstorm and we had to play online even though we were on the same network.  If you are into retro RTS and need to try Steel empire from the Amiga A1200, I need to get a copy of Warcraft 2 again....