Prologue To History: Opera Omnia

I've been meaning to play this seriously for a few weeks now, and it looks as if it's never going to happen with my current work and gaming schedule. So I think it best I draw your attention to it, if it hasn't been already, and sit back. I can't remember if Robert Yang pointed me at Opera Omnia over at IndieGames first, or whether it was Jim - either way, it's the sort of experimental, novel game which really isn't like anything else I can think of. It's a puzzle game based around you playing a historian, trying to create theories which would explain how a situation come to pass. You make simulation models explaining migration patterns, and is based around reversing the usual ways of thinking. As in, how could this have come to pass? Honestly, it's very abstract, very strange and certainly worth playing and thinking about. Get it from here.