Hi there. Well I looked at the site but you had to log in to see a demo so I am not entirely sure what it does - but if you mean you want something that enables you to create branching exercises, role plays simulations like that, then Moodle's built in Lesson module would do the job. http://docs.moodle.org/22/en/Lesson_module
Teaching with Moodle
Moodle for law course
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