>>559848if you haven't already played them, Fallout, Fallout 2, and Fallout: New Vegas
Arcanum is hinted to be taking place thousands of years after the events of the Fallout games, but isn't really a post-apocalyptic game itself
The first half of Darling in the Franxx is amazing, but it shits the bed with the ending.
[spoiler:lit]If you don't mind reading a book, you could try Cormac McCarthy's The Road or Samuel R. Delany's Dhalgren.[/spoiler:lit]