From the Publisher's Website:
The game is about Kaffe (KF15), an artificial coffee synthesis. The year is 2010 and the world is ruled by KaffeInsomnia, the corporation that first made Kaffe. PCs can be Managers, Preachers, Technicians, Daredevils, Soldiers and all are addicted to Kaffe.
Action resolution is performed by rolling a number of ten-sided dice equal to the character's Insomnia Level (1 to 10). The highest rolling die is added to the character's ability score and, if the result exceeds the difficulty level (2 to 10), the character completely succeeds.