We are offered to play a match.

I would like to ask the respected Dreamcatcher, who plays on both platforms, to post the rules for random map games on the Portal, or provide a link. And to explain the main differences from our rules. Thank you in advance.

Okay, here are the Heroes Portal rules, and here is a similar thread discussing the tournament, please have everyone read it and see what our fellow players are saying.

Added 11 minutes later
The following differences in the rules have been noticed:
1. Restarts. There are no restarts on Heroes Portal upon encountering a 1-1-6 situation, but there are on Hive.
2. Heroes. There are differences regarding the use of spells obtained from level 4 specialist heroes. There is no point in detailing it, just look carefully yourself. But pay attention: on Heroes Portal, the number of Tants is limited, as are the level 4 specialists, but not on Hive.
3. Scrolls. On Hive, the requirements for building magic are more flexible, allowing the use of scrolls, but there is no rule for the 6th week. On Heroes Portal, there is.
4. Necropolis. On Heroes Portal, the starting hero is random, so goodbye, Gosha.
5. Diplomacy. On Heroes Portal, it is completely prohibited, while on Hive, it is allowed in a limited way.
I have only provided an overview, not a detailed analysis, so for accuracy, please read and analyze it yourself!!!