  Gamification has been widely employed in the educational domain over the past
eight years when the term became a trend. However, the literature states that
gamification still lacks formal definitions to support the design and analysis
of gamified strategies. This paper analysed the game elements employed in
gamified learning environments through a previously proposed and evaluated
taxonomy while detailing and expanding this taxonomy. In the current paper, we
describe our taxonomy in-depth as well as expand it. Our new structured results
demonstrate an extension of the proposed taxonomy which results from this
process, is divided into five dimensions, related to the learner and the
learning environment. Our main contribution is the detailed taxonomy that can
be used to design and evaluate gamification design in learning environments.
