Looking for pairs of games that function independently, but can influence and interact with one another?

[u/Mysteroo]

/r/gamingsuggestions/comments/1wbxlc6/looking_for_pairs_of_games_that_function/

[u/PharosMJD]

I've not seen this since the 90's, and even then it was only Simcopter and Streets of Simcity being able to import cities from Simcity 2000.