In the Definitive Edition, Tracking is removed from the game, and its effects now apply to all civilizations for free upon reaching the Feudal Age.
The following table shows the amount of tiles uncovered per minute (assuming no known tiles are scouted more than once, formula = 130 * speed * LOS radius):[1]
As the Dark Ages passed and barbarian clans became trained armies, military techniques improved. The new armies were better prepared for campaigning and maneuver. One result of these improvements was being less susceptible to surprise and ambush.
An unused 256Ć256 image of the icon for Tracking exists in the game files, although it looks less detailed than the other icons in the game, as it looks like the 36Ć36 icon from the original game stretched to a larger image size.
