it’s less groundbreaking in context than I think people give it credit for.
Are you seriously going to tell me that the open-ended structure of Deus Ex, coupled with the RPG elements and interactive environments wasn’t groundbreaking for the time? There wasn’t anything quite like it back then, so much so it basically created the genre of Immersive Sims as we know it today.
Hell, you could trace basically any first person shooter with RPG elements from after 2000 back to Deus Ex, it’s the gold standard for a reason. The closest thing we had to this kind of game back then was Strife, a Doom clone with a basic quest system and inventory, even System Shock 2 is less dynamic and open-ended than Deus Ex.
There’s an indie game called Shadows of Doubt that does the whole immersive sim in a big hub stuff pretty well. Kind of jank and unfinished, but I think it’s the closest thing I’ve seen in recent times to Deus Ex.