Est is an educational game that requires the player to estimate the size of line segments on the screen in centimeters. The player is allowed a 1.25 centimeter error margin.
Before starting the game it's possible to calibrate the game so that the actual lengths given actually correspond with the screen size of the player.
[source:mobygames]
Distribution : Retail - CommercialPlatform(s) : Commodore PET
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