And there come new friendly batch of decomissioning online servers for Ubisoft games. If you played Heroes VI, it's in.

Decommissioning of online services for older Ubisoft games (January 2024)

Heroes of Might and Magic VI

You will be unable to play multiplayer, link Ubisoft accounts in-game or use online features.

Additionally, the Ubisoft Connect rewards will be unavailable.

This is last strike after Dynasty system was disabled. There should be true, that you get some of its reward by default now, as they were very handy to speed up your progress and enriched your experience.

Such is a fate of games, which rely not only on online Ubisoft dependat multiplayer but also on online experience enriching system.

Sayonara Heroes VI 

Thanks to Crazy-AK47 for the alert. ;)