The following are resources that I found helpful for my project. It's a mix of academic papers, books, articles and online courses.
Amer, M. (2014). Language learners’ usage of a mobile learning application for learning idioms and collocations. CALICO Journal, 31(3): 285-302.
Blake, R. J. (2013). Brave new digital classroom technology and foreign language learning (Second ed.). Washington, D.C.: Georgetown University Press.
Brock, M. (2012). Best practices for teaching with emerging technologies. New York, NY: Routledge.
Design and Development of Educational Technology. (n.d.). edX. Retrieved October 17, 2014, from https://www.edx.org/course/mitx/mitx-11-132x-design-development-2686
Gee, J. P. (2007). What video games have to teach us about learning and literacy (Second ed.). New York: Palgrave Macmillan.
Godwin-Jones, R. (2014). Games in language learning: opportunities and challenges. Language Learning & Technology, 18(2): 9-19.
Godwin-Jones, R. (2011). Mobile apps for language learning. Language Learning & Technology, 15(2): 2-11.
Peterson, M. (2013). Computer games and language learning. New York: Palgrave Macmillan.
Schell, J. (2008). The art of game design: a book of lenses. Amsterdam: Elsevier/Morgan Kaufmann.
Squire, K. (2011). Video games and learning: teaching and participatory culture in the digital age. New York: Teachers College Press.
Steinkuehler, C., Kurt, S., & Barab, S. (2012). Games, learning, and society: learning and meaning in the digital age. Cambridge: Cambridge University Press.
Sykes, J. M., & Reinhardt, J. (2012). Language at play: digital games in second and foreign language teaching and learning. Upper Saddle River, NJ: Prentice Hall.
Thorne, S. L., Black, R. W., & Sykes, J. M. (2009). Second language use, socialization, and learning in internet interest communities and online gaming. The Modern Language Journal, 93: 802-821.
Thorne, S. L., Cornillie, F., & Piet, D. (2012). Digital games for language learning: challenges and opportunities. ReCALL Journal, 24(3): 243-256.
Video Games and Learning. (n.d.). Coursera. Retrieved October 17, 2014, from https://www.coursera.org/course/videogameslearning