Greentext

The Persona series comes to mind. But probably more than anything Witcher 3, Skyrim, Disco Elysium, Stardew Valley, No Man’s Sky, Nier Replicant/Automata, Metal Gear Solid 3, there’s actually quite a few imo.

Edit: oh and dwarf fortress!

Morrowind ?

Neither of these are popular enough to be on the scale of LoTR, but in terms of atmosphere and detail:

Hollow Knight - my absolute favorite thing about it is each NPC has its own voiced language recorded, babbling in the background as you read the dialogue.

Subnautica (the first one) - shitting myself with each new experience is something I'll always cherish. Highly recommend just playing without looking into the gameplay or plot. Has elements of exploring, resource gathering, base building, psychological horror (not graphic, just tense scenarios), sneaking.

Mass Effect. Even though it has its flaws, it was just an epic story, built up perfectly over three games. The ending is disappointing for some, but I really liked it. I was really excited for the sequels when the first one came out.

Witcher 3 is pretty good

World of Warcraft, at least for the first 3 expansions. I think the people that made it back then were utterly devoted to the story and gameplay, as were the players. I'll remember playing that until I die, so many memories.

Downvote away.

The first Halo trilogy takes the cake for me

A genuinely heart warming story that deals with strong themes of love and friendship in a way that made a genuine impact?

Undertale.

The stanley parable

Undertale and Deltarune.

Dwarf Fortress.

Ultima 1-7 and 8 partially.

Battletoads

Clair obscur

Has he not heard of Ocarina of Time?

satisfactory

There’s a recent one, Expedition 33.

planescape torment

BG I,II

Fallout I,II

I always felt like Breath of the Wild was Lord of the rings animated by studio Ghibli the videogame.

Elden ring

Final fantasy 6 Chrono trigger Capcom vs SNK2 Soul Calibur 2 Super Mario Bros 3

These games all stand tall as giants of excellence decades after their release. Teams have already decent renowned executing at the peak of their genre with true craftsmanship and deep care into their design from mechanics to aesthetics to music to gameplay.

Books are where it's at! Lord of the Rings all the way!

Dark souls 1

It's not a trilogy, but I gotta preach the good word of Ender Lilies: Quietus of the Knights. If you enjoy 2D metroidvania style games it's top notch.

The game just drips in atmosphere. The environments are beautifully drawn and designed, characters and enemies are animated well and the music just wraps everything up in a nice bow. It's a melancholy game and it literally made me cry at points and I'm not the type to tear up often when playing games.

The game can be challenging at times, but I wouldn't say significantly so. I would say Hollow Knight is more challenging than this game especially with some of the end game content that that game has.

The game is worth full price, but it goes on sale pretty regularly and probably is right now with the summer sale on Steam.

There's also a sequel out now called Ender Magnolia. I haven't played it yet but I will eventually.

Outer Wilds is this game.

Deus Ex, if you ignore that it really is ugly as sin. Sounds amazing! Plays beautifully! But yeesh, Unreal Engine 1 humans.

Most immersive sims are arguably in the same boat. The people involved had enormous ideas. As commercial products, they were woefully underappreciated, until years later. And quite frankly they do look like shit compared to much simpler contemporaries. Some NoClip documentary about Looking Glass could show a major artist had muscular dystrophy that makes his shoulders work wrong, and I'd be like, oh, that explains things.

Transport Tycoon would still be a fun game even today.

Cold Waters if you're hankering for some hot sub on sub action.

Completely different genre but the Stabley Parable checks all of these.

100 years in the future and it will be just as perfect.

Anyone know if there's a videogame trilogy of the same calibre?

Edit: Thanks guys!