Multiplayer doesn't work. The public lobbies are dead so you are left with friends. You first need to join your friends' lobby or they need to join yours - that can take 10s or 10 minutes depending if the game lets you join or not. After you finally manage to start the game, someone might get hit with game freeze in the middle of the game. They will be replaced with AI and the game doesn't let them to come back.
Within 2h of trying we managed to play one full game, from start to finish, which took about 25-30 minutes. That leaves 1.5h of troubleshooting. Great.
There is also a major bug which causes your buildings to disappear if the rare resource is present.
After browsing the internet it seems there is no fix and only god decides whether it's going to work or not. The official discord and forums are dead. It looks like abandonware.

A fun and enjoyable game. Well for me it is.

modern M.U.L.E.