In Penn & Teller’s 1994 game Desert Bus, you must pilot a bus along an arrow-straight road through 360 miles of featureless desert from Tucson, Arizona to Las Vegas. There are no passengers, no other vehicles, and no scenery but dead trees and bushes. The bus tends to drift, so you have to work continuously to keep it on the road, but apart from that there is nothing to do. At a top speed of 45 mph, it will take at least 8 hours of continuous attention to reach your destination.
Absolute Entertainment ceased operations before it could release the game, but a press copy came to light in 2000, and since then versions have been released on Android, iOS, and virtual reality. A recurring livestream had raised $6 million for charity by 2019.
(When you reach Vegas, you’re given one point and the option to drive back to Tucson.)