The faculty of Denison University have been making heuristic use of gaming and simulation for several years. In the fall of 1974, the college was awarded nearly $300,000 from the Lilly Endowment to continue and expand that heuristic use. Three years later, forms of simulation are being used by fifty per cent of the Denison faculty, and the college is becoming a center for the study of college-level applications of simulation. Four major topics related to the Simulation Project are discussed: (1) how the simulation concept has been defined for widest interest and applicability; (2) how simulation can be linked to a problem-solving approach to learning; (3) a short case history of how the previous two formulations were integrated in an extensive way into a traditional college curriculum; and (4) methods of evaluating these simulation efforts, with respect to validity and teaching effectiveness. (Author/MV)