Kenshi.

If you can get past the kind of... weird control scheme...

The game is basically a single player mmorpg.

You start off as an absolute weakling, and there is no ... scaling, the way most other rpgs either generally have certain levelled enemies in certain areas, that you progress through linearly or unlock sequentially, or just an outright whole world spanning dynamic level matching kind of system.

You can be battling a small beast... and then a herd of very, very much more dangerous beasts, or slavers, will just happen to pass by, and royally fuck up your day.

Every character in the game, including you, plays by the same rules.

All major NPCs can be killed, the game is also full of varying factions with varying alignments towars other factions, and they will treat your character differently based on your race, the kinds of actio s you do, your reputation with other factions.

The storytelling is ... a sandbox/emergent approach. Not in the sense of 'there are no story lines or quests'... but in the sense of... a whole lot of stuff is out there, but you have to self direct yourself to go out and find it, or randomly encounter it.

Also, you can gain allies, make your own faction, and control a small army... and you can even build your own settlement, and economically interact with the rest of the world.

... Its... kind of hard to describe.

There really aren't any other games quite like Kenshi.

Its got a good sized modding scene, and it incorperates at least some elemenrs of... every game you mentioned.

If you use a mod to up your max follower/faction member count... you can basically play the game as an RTS (with pause). Build a settlement, recruit followers (or enslave them), arm them, fees them, train them up, and go take over a city if you want.

... Or play basically solo, just you and your bonedog, maybe as a bounty hunter for hire, or a hashish smuggler, or get a pack animal and run a trade caravan.