[2021] Is MP worth it?

You'll find servers for this game are solidly divided into PvP and PvE camps. Your lone wolf style would lend itself better to PvP naturally. However, you might enjoy a hybrid approach, where you venture out to do your own thing during the week, but come back to a communal base to team up for horde night (contributing your fair share of resources in the process).

If you're looking for a better idea of what specific servers are on offer, see the Servers sub-forum.