As it name suggests, Biathlon 2002 simulates biathlon. This sport consists of cross-country skiing and rifle shooting on a shooting range. The character's energy needs to be spent wisely, as skiing constantly at a very fast pace will impede accuracy on the shooting part.
There are about 15 different athletes to choose from and various courses to race on. Everything is presented in real-time 3D graphics. According to the publisher, this was the first biathlon game on PC at the time of release.