I don't buy that copy by GOG, or maybe I will do, but right now I am ok with original box that I got during kid days. The 100 level are amazing, consider the first 10 as tutrial to discover the bricks functionally and then play the real game from 11 to 100. Those puzzle are awesome and well made then I suggest to try that :D
I like Warcraft2, that engine is fluent, moreover there is gog server to play online. Also there are a lot of non official server where key product from boundle is not compulsory...
I suggest to join also some others server like war2usa.com DISCORD: https://discord.gg/FjgpMJX nice little community