Sid Meier's Civilization V

In 72 libraries here. 58 launched it, and the typical player put in 32 h. 2 finished it.

The main story is about 20 evenings of two hours, or 62 with the extras.

Named in 4.0% of Name 100 runs, about 1 in 25: people remember it when asked to name 100 games from memory.