Gaming

I see a lot of MMOs being recommended, but I find them to be either shallow in combat or predatory unless you are seeking MMO specific things, so I'm going to point at single player/coop stuff.

Bethesda has a large selection of open world games, but I pretty much assume people have played all of them (Elder Scrolls / Fallout games).

If you are okay with going outside of Fantasy, the Far Cry series has some impressive technology in their older titles. Far Cry 2 is a personal favorite, your PC might be able to handle it.

Borderlands series.

The original Dragons Dogma: Dark Arisen holds up. This is probably my best recommendation based on your asks.

Lego Star Wars or the Lego Marvel game.

Fable 1, 2, 3

The Middle Earth Shadow of Mordor / Shadow of War Games were pretty incredible but might be too high-end.

The first Red Dead Redemption might run for you.

Early Dark souls games might run. Maybe 1 or 2.

From here, I would start listing old Star Wars Jedi Knight series games.

I could probably go on, but this is most of the good stuff off the top of my head.

I forgot to add Mass Effect. Great for sci-fi, great leveling, and combat.