The 0.9 patch to They Are Billions added two things: a new difficulty setting (max population), and a new Special Infected, the Giant. The difficulty setting is a new population setting. The previous population choices were few, very low, low, medium, and high. This new choice, max, comes on the high end. The result is a new set of hard challenges, pushing the maximum score factor up to 800%. Of course, this doesn’t affect any existing games, as you only choose difficulty at the start of a new game. I’m currently working my way through a 160% difficulty game (80, low, Peaceful Lowlands) so I can’t really comment on the…