Peirce, Neil, Owen Conlan, and Vincent Wade. "Adaptive educational games: Providing non-invasive personalised learning experiences." Digital Games and Intelligent Toys Based Education, 2008 Second IEEE International Conference on. IEEE, 2008.
What’s the Big Idea: Games can’t be created one-size-fits-all. Adapting the learner experience without invasion is studied.
Terms to get familiar with: ALIGN (Adaptive Learning In Games through Non-invasion), Adaptive Hypermedia , Dynamic Difficulty Adjustment, path finding, NPC (Non Playing Character) behavior 
Research questions/Hypothesis, methods used in research/conclusions: Realizing motivation through appropriate challenge, curiosity, fantasy, and control there remains great potential to address the under-motivated learner. This paper details a reusable architecture that supports the approach. (ALIGN)
Research Papers to read from this article:
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