Make War Not Love is an annual celebration with competition and prizes. All you need to do is register, pick your faction and then tune in to watch your faction leader take part in various challenges in an attempt to earn points every day to unlock free content for all loyal faction followers. Every day the winning faction will be awarded with some great DLC for each of the involved titles alongside a SEGA digital title. At the end of the event the overall winning faction will be awarded new digital content for their title. The full event begins on the 16th Feb, all the titles involved and a wide selection of their associated franchises, are offered at great discounts over on Steam.
Link to Steam Page (live from 16th Feb)