Millennium 4 now with a Guide and a Pack Game+Guide

http://store.steampowered.com/app/298840/

To celebrate the event, the rest of the series is 80% off too:

http://store.steampowered.com/app/280140

http://store.steampowered.com/app/298820

http://store.steampowered.com/app/298830

http://store.steampowered.com/app/298850