Six years of experience at Washington State University's College of Veterinary Medicine using an online, asynchronous, problem-solving small animal case simulation tool are presented. Student satisfaction with the online problem-solving experience was high, and the majority of students felt that the experience was realistic and worthwhile. The effort required to keep the experience realistic required a large investment of time by instructors, which ultimately led to discontinuation of the online course. A summary of features to consider when creating case simulations is presented.