Ghost of Tsushima, Assassin's Creed Valhalla, Cyberpunk

It would be a massive shame to not throw Fallout: New Vegas a nod.

Cruelty squad, balatro, broforce, yakuza games, ghostwire tokyo, gta 4, deep rock galactic, risk of rain 2, binding of issac are some of my personal reccomendations

Dishonored is pretty good, although not truly an open world, there are side quests and areas to discover in each mission

i would recommend titanfall 2, its a masterpiece

Probably some stigma associated with it but Genshin Impact is kind of in the vein of Breath of the Wild with the open world exploration and puzzle solving. Tons of story arcs, and they are pretty dang good. While it's not offline, it's not multiplayer unless you want it to be.

Dread Delusion

Open World, meaningful (and hard choices), excellent writing. It's the best game I've played in recent years. It can also run on a potatoe, but that shouldn't be a problem for you. :)

Xbox Game Pass for PC is an incredible value, even with the caveat of having to run windows (which sucks so bad). That's always my top rec for PC gamers.

Elden Ring is still my number one game. It's awesome and will run great on your new PC as well as your deck. It's also got a lot in common with your listed games.

Grounded is a great game as well! It's a reasonably difficult survival crafting game (like Subnautica). Same goes for Return to Moria.

You might want to check out Red Dead Redemption 2 in story mode. The graphics and physics are pretty incredible. It’s a little old now, but I think it still holds up well, especially if you like the “old west cowboy” aesthetic.

Baldurs Gate 3 seems like a no brainer

Red Dead Redemption 2 will probably hit all the nerves. Open beautiful world that still hasn't been matched by another game.

The Spider-Man games are also great and Spider-Man 2 is just around the corner.

And Path of Exile 2 is currently all the rage even though it's still in early access.

And when you still have time you can play Baldur's Gate 3, first game to win Game of the Year in all contests.

Outer wilds

Someone else has said Baldurs Gate 3, and I second that. Great game.

Not sure if automation/building is exactly your tastes, but satisfactory is a good one.

None of the one suggested.

https://libregaming.org/play-libre-games/

luanti

0ad

endless sky

mindustry

wesnoth

Outer wilds if you enjoyed subnautica's sense of wonder and exploration. Not replayable but a unique once in a lifetime experience.

Helldivers 2 if you enjoy halo firefight and it's expansive sandbox. Very replayable.

Teardown is very replayable and will run great on your rig.

Curious why you went for 64gb of ram instead of 32, because the extra dosh could have gone to a better gpu. Always use the extra on the gpu or monitor.

You'd probably enjoy cyberpunk 2077

Mass Effect legendary edition.

SHEEPY

The new Indiana Jones is great

Factorio

You've got a nice new pc and if you want to play something like BOTW, you might enjoy Red Dead Redemption 2. BOTW was also my favorite game of all time until i played rdr2. RDR has similiar mechanics to breath of the wild, like hunting, but the whole world is just so lively, immersive, and beautiful. I can't think of a single issue with the game, it's a true 10/10, can't praise it enough.

I also recommend any other rockstar game, specifically gta v and max payne 3, they are both great as well.

If you want an FPS experience, play the original call of duty modern warfare games first, MW2019 next, then black ops 1-3+cold war+6. I wouldn't recommend new mw2 or 3.

I'll also say the Metro games are great, they are like post-apocalyptic COD with a great story and nice gameplay. Super underrated series.

Edit: I have a specific taste for shooter games, so I'd suggest you read other comments if you are into other genres.

A few years ago I got into this weird russian game about gravity and detonating sideways nukes above ground.

The storyline is a bit complex, but essentially its about a resource-based society trying to build colorful apartment complexes to house it's population, but the government keeps bombing the developments anytime an even stretch is built.

To get around this, the player has to grab these incomplete apartments as they're dropped by helicopter from the sky and position them into interesting structures that can't legally be called apartments, thus saving them from detonation.

There's a romance angle too, where the apartment bomber convinces the player to build multi-storey apartments at the last minute, thus allowing the govt worker to deploy his vast arsenal at a profit and split the proceeds with the player 50:50.

Its a pretty intense game, and I can still hear the chilling screams of those occupants to the tune of that haunting russian folk song.

Assassin's creed series

Black Messa (fanmade Half-Life remaster) followed by Half-Life 2 (and its episodes), maybe also Half-Life Alyx if you have a VR headset (a cheap Quest 2 should be fine for PCVR)

Honestly psychonauts 1 and 2 are both absolutely amazing, and the art style means that they don't end up looking ancient despite still looking old. The story is also very enjoyable and influential on the level design

My favorite game is Descent, I just wish I had the hardware to play the successor, Overload..

https://youtu.be/jQ5RFBo0L_U

No Man's Sky - One of the most beautiful games out there imo, and has vastly improved since its disasterous launch. Warning this one does require an internet connection (actually for a good reason) but you dont have to interact with anyone, and it's difficult to even encounter another player in the wild outside of the Anomaly hub and campaigns due to its sheer size.

Project Zomboid - Even if you have zero interest in zombie stuff it's still worth a shot. Has a massive detailed world based off Midwestern towns in the midst of a zombie apocalypse. It's still in development so there's some noticeably unfinished aspects, and they've only just begun to add non-zombie NPCs.