

I haven’t kept up with anime much for many years now, but I can easily imagine that this is the case. There had been mecha anime with angsty pilots and behind-the-scenes politics before, but Evangelion pushed it all to a whole new level by adding mysticism, massively flawed characters, and existential dread into the mix. I know that almost immediately following the initial release of Evangelion we got Gasaraki and RahXephon, both of which bear obvious influences from Evangelion.
Apparently the original game and Brood War expansion are free to install through the Battle.Net launcher these days.
If you have the original discs, the later official patches added the ability to copy the “mpq” files from the CD into the game’s directory, so you no longer need the disc in the drive. Of course, you’re still going to need a drive for the initial installation. That should work for single player (it’s been a few years since I last did it) but I don’t know about online multiplayer.