There are many kind of videogames: recreational, educational. But now you can diagnostic malaria while playing. Yes, malariaspot (http://malariaspot.org/) is a crowd-sourcing online game designed by the Polytechnic University of Madrid, Spain. The challenge for users is in a minute, find the largest number of malarial parasites, in real images of blood samples.
There are 200 million new cases of Malaria a year. The causative agent are protists of the genus Plasmodium, transmitted by the bite of an infected mosquito. In humans, multiply in the liver and then attack the red blood cells. Drug therapy is based on artemisinin.