One thing I learned: They're real (medical!) doctors. Also, Bioware games always rank in the top 10% in metacritic scores (well, perhaps, but it takes some number wrangling at gamerankings.com to get this conclusion). It comes as no surprise, but perhaps it has something to do with Muzyka and Zechuk's fascination with the human digital relationship. How do you create characters that the player identifies with? How do you create emotionally engaging interactions - interactions that the player cares about? They laid out some basics: use an activity pillar system. Have the player go through cycles of exploration, combat, progression, and story. Don't go too heavy on any one thing. Oh, and combat doesn't have to be a physical fight, it can be emotional conflict.