We already spoke to Mac Walters about how he goes about writing the story for the Mass Effect games. However, if you want some more insight, BioWare released a new developers diary from the team that focused on how the story comes about as Walters expands on the whole process and some more of the internal specificities of writing a game. He has some very interesting insights and really explains what their goals at BioWare are for the series, and also shares a  few cool hints of what players can expect. Hit the jump for the video from BioWare Pulse.