Warhammer 40,000: Boltgun

In 14 libraries here. 7 launched it, and the typical player put in 2.1 h.

The main story is about 5 evenings of two hours, or 6 with the extras.

Named in 0.1% of Name 100 runs, about 1 in 1,685: people remember it when asked to name 100 games from memory.