Your citizens don't stay put in Stellaris-style 4X strategy game Final Vanguard - start a war and "entire waves of refugees can emerge"

Final Vanguard is a real-time sci-fi 4X grand strategy game that puts an unusually big emphasis on migration. We've seen migration mechanics in many 4X games – pops can shuffle about in Stellaris as you slop your colonies across the map, populating the periphery and slowing the development of your homeworld – but Final Vanguard's creators Heavy Pepper Inc want the feature to be central.

It's part of an ambition "to model a civilization made up of interconnected systems that influence one another over time"...