It's a common phrase to say "learn by playing." Different communication theories confirm this. Games make us produce dopamine, a brain chemical that increases learning and stimulates our state of attention. eLearning experts believe that games and playing need to be part of a course for adults to learn effectively. As a result, learning games are a necessary part of great eLearning these days. Without them, your courseware wouldn’t be so engaging...“They are fun, competitive, rewarding, interactive, and attention-grabbing. Traditional training is…not any of those” says Steve Boller from Bottom-Line Performance Blog.