The player learns the D'ni numerals in Riven by playing the game in the school where the prisoner is moved a certain number of clicks toward the whale-like creature depending on the number indicated on the spinning dial.
The player learns the D'ni numerals in Riven by. The player was playing the game in the school where the prisoner is moved a certain number of clicks toward the whale-like creature depending on the number. This number was indicated on the spinning dial.