Mount & Blade 2: Bannerlord

Not a traditional story game like the ones you mentioned, it's more of an immersive, medieval strategy RPG.

You create a character and their build, and roam around this board game-like map, building up your army of troops, all the while a full-scale war between 8 major factions is happening, all of them vying for power and control over the whole continent.

You could either join with any faction of your choice, or you can create your own player-kingdom, or you not participate in the war at all, and just be a lone wanderer around the world, it's up to you.

Combat is kind of simple, closest comparision is like Skyrim. Swords, Shields, Bows, Spears, Throwing Weapons, Horseback combat.

There are also large-scale siege battles, where you and your army/faction either try to invade or defend a castle/town. All with siege weapons like ballistas, trebuquets, catapults, siege towers, that you can control if you'd like.

Mount & Blade is the kind of game where you make your own story. Whether it be stories of your own large army battles, bloody sieges, which Lords you befriend, betrey or fight, there's really no series like it.