Help me choose what I want.

The question is this: after browsing this forum, I discovered that the unforgettable Heroes 3 has many versions, there's something called WoG and SOD, and some versions like 3.58f (the number is just an example). Those who have experience, please explain the difference. Or, at the very least, recommend a version for playing online, we can even use Telnet. And it would be even better if you could provide a link to download this version. In general, thank you in advance.