While I've been waiting for this kind of game, some approximation I've been able to whet my appetite with is the old classic Baldur's Gate (I and II) with the following mods / optional settings.

Sword Coast Stratagems (radically improves AI, making mages especially terrifying), INSANE difficulty Double Damage (only damage dealt to your party is doubled) No Reload ("hard core" mode. No save scrumming).

These combinations turn the game into a strategically deep, and tactically rich experience. And just the hell more memorable.