JUST waiting to see how and what to do with files ....
References: To see the research paper -
Engaging students in OH&S hazard identification through a game
http://library.med.utah.edu/e-channel/wp-content/uploads/2016/04/digra-2013-paper_113.pdf
To access a version for downloading on a computer - http://stefangreuter.info/?page_id=26
To find it in the App Store https://itunes.apple.com/au/app/trouble-tower/id571190964?mt=8