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On Steam, there is RISK: Global Domination, which is based off of the classic RISK board game.

There is the original world map, but also many other maps that you can play as well as modifiers to make the matches harder and/or different.

The game used to be on tvOS, and that is how I played it most. It was a little better on tvOS than Mac, but the tvOS version is no longer playable. The Mac version is almost identical to the iOS and iPadOS version.

I think it is free to try.
 
Speaking of board games they need a Dungeons and Dragons board game in video format with most of the rules built in so you don’t have be an expert right off the bat. I tried playing the board game version several years ago with the grand kids and gave up on the idea because everything I had to know/remember. :)
 
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