One of my favorite things about Cities: Skylines is the ability for players to mod the game. Taking an already ridiculously fun game, fans have been running wild with their imagination, creating some pretty impressive mods for it including one that takes you to the streets of Grand Theft Auto 5's Los Santos.
Over on the Steam Workshop you can find modder grockfeller's accurate recreation of the entire area of South San Andreas, with faithful representations of Los Santos, Palomino, and Sandy Shores.
"Ever wanted to challenge and continue the vibrant metropolis of Rockstar Games? Now you could! You'll have to deal with multiple problem like employement, ecology, waste disposal, and water gestion," the description reads, also warning players that you'll need unlimited money "because the town is in debt, it was expensive."
I can't even imagine the time it took to build a map like this, but it seems fans are really appreciative of it. The comments for the mod are overwhelmingly positive, so definitely check it out.