Open-ended Dark Albion (LL or 5E, probably)?
I just picked up the system-neutral Dark Albion setting book and have become stimulated by its detail and creative potential.
A quick and dirty description of the setting (players would not be required to own this book, relevant setting info will be made available in the game) is that it is the War of the Roses by way of Warhammer Fantasy - a pseudo-historical gritty and grim low fantasy 15th-century England fraught with internal political intrigues, civil warfare, and an ever-present threat of corrupting Chaos.
The game would focus less on any prepared adventure as I would be playing off of the character creation to provide an immersive, realistic narrative that would allow them and their actions to interact with and impact the setting in an appreciable manner. There can be elements of sandbox gaming, social conflict, settlement management, dungeon-crawling, etc.
I would be most wanting to run this game using either a somewhat house-ruled Labyrinth Lord (for a grittier, more perilous style), or perhaps I can be swayed to using a somewhat house-ruled 5E (for a more heroic, high fantasy style).
I should note that there are aspects of classism, gender-restricted roles (although there are clever ways to work around them), and racism towards non-humans inherent in the setting, if that puts anyone off.
Are there any potential noblemen, yeomen, knights-errant, or Clerics of the Unconquered Sun out there interested and willing to brave the perils of Dark Albion and make their mark on the Rose War?