I think the key is variation …
A Civ game has a slightly different map and starting position. Twitch games like first person shooters play through differently accordingly to the strategies used.
But role playing games tend to be stuck to one particular script or plan. When you’ve gone through the script, there’s not much more to do with the game. Time to find another one …
The next game could be the Massive Multiplayer Online space game – Eve. [chuckle] Just come out of a session (several actually cos of resource leaks that kill performance) having to be very firm in not accepting new missions. Back in 9 hours to get my character training in something new.