An overview of participative exercises of the game/simulation/case study type is provided, and seven distinct types of exercises are identified and briefly described; i.e., "pure" games; "pure" simulations; "pure" case studies; simulation games; games used as case studies; simulated case studies; and simulation games used as case studies. The educational strengths and weaknesses of games and simulations are then examined and three basic areas in which games and simulations can make a contribution in tertiary education are discussed: (1) helping to achieve basic cognitive objectives; (2) teaching laboratory skills; and (3) achieving non-cognitive aims. In conclusion, suggestions are offered for choosing an exercise, carrying out any necessary modifications, and using the exercises effectively with a class. Five general books and 16 books related to specific subject areas are suggested for further reading. (MES)