I don't think you can go too far into roleplaying territory, as far as solo gaming goes. But I do say this as a huge fan of rp-games. As a solo player, you have full control over how deep you dive into the story, so the game facilitating roleplaying will let those who enjoy it delve into it, and for others it'll just be another roll on a table. Depending on how you implement, of course.
My 2 cents.
My 2 cents.