  The ultimate goals of serious education games (SEG) are to facilitate
learning and maximizing enjoyment during playing SEGs. In SEG development,
there are normally two spaces to be taken into account: knowledge space
regarding learning materials and content space regarding games to be used to
convey learning materials. How to deploy the learning materials seamlessly and
effectively into game content becomes one of the most challenging problems in
SEG development. Unlike previous work where experts in education have to be
used heavily, we proposed a novel approach that works toward minimizing the
efforts of education experts in mapping learning materials to content space.
For a proof-of-concept, we apply the proposed approach in developing an SEG
game, named \emph{Chem Dungeon}, as a case study in order to demonstrate the
effectiveness of our proposed approach. This SEG game has been tested with a
number of users, and the user survey suggests our method works reasonably well.
