It always helps to have God on your side (or at least claim to), and the latest developer diary for Europa Universalis IV goes into detail about how different factional faiths affect the grand strategy experience. "Will you allow reformation when it rears its head in Europe or stand your ground for Catholicism? Will you forego Christianity entirely and become a champion of the Muslim or Buddhist faiths?" asks the blurb.
Europa Universalis IV releases in August, whereupon we will plunge into yet another infinitely deep grand strategy game in search of a final verdict.