Team Fortress 2
Cruelty Squad (okay, the game is only a couple years old, but the art style is so intentionally shit that I just can't see it aging at all)
Jet Set Radio, Jet Set Radio Future, and (I predict) Bomb Rush Cyberfunk. BRC also is only a couple years old, but it shares the same style as JSR(F), which has aged very well.
Minecraft
Doom and Doom II (just remember to turn off texture filtering, or set it to nearest neighbor).
The Sims. No, really, I think The Sims games have all aged very, very well. Some better than others, but I feel like each one of them has a visual style that still works today.
Mirror's Edge
The Portal games.
Jet Set Radio
RollerCoaster Tycoon 1 and 2. They still look as good as the day they were released, while RCT3 looks terrible now.
Age of empires 2
Definitely Minecraft
Transistor
Journey
Terraria
My son was playing Sunset Overdrive the other day, and I had forgotten how cinematic it was. Very fun, very punk rock.
The original XCOM has some of the best pixel art in any game, imo. Original resolution: 320x200. Somehow it is still visually detailed and clear. It has one of my favorite things in a game ever where the tiles you see are partially obscured by tiles you can't. Specifically, the tiles you can't see aren't fully blocked so silhouettes can still be visible. If you're good you can use it to ID aliens lurking in the shadows and sometimes it's literally like 3 pixels of difference for you to pick up on it
StarCraft 2 still looks amazing.
Psychonauts. The design aesthetic is so well crafted. The gameplay and technical elements did age, but the level design and aesthetics are still mind blowing
Crysis still looking great.
Minecraft
I would have to say L.A. Noire.
Super Mario World II: Yoshi's Island
When it comes to 3D games, if they tried for realism, they can't, IMO. Stylized 3D can look pretty good even when fairly old, but old 3D that tried for realism just looks dated. Even a lot of 3D games now that try for a more realistic style (outside of the huge AAA studios) look kinda bad to me, but I'm very sensitive to the uncanny valley effect. I mean, even before they updated the models and world, WoW still looked pretty decent long after release.
Most 2D games. We're only slowly figuring out how to make 3D games not look janky...
Metroid Prime for the GameCube, but the remake on Switch really turned out to be the consoles best looking game
"team fortress 2"
Man I miss Day of Defeat, it was the best half life mod IMO
Borderlands
Many or most retro games from the 80s-early 90s (NES, SNES, Genesis)
Terraria
Red Alert 2. Any N64 game at high resolutions. Command & Conquer Generals at high resolution. If you can't tell, I like cartoon aesthetics.
The Conduit on the Wii
Has anyone really been far even as decided to use even go want to do look more like?
Super Hexagon
Jak and Daxter
Borderlands
LittleBigPlanet 1 & 2
Twisted Metal (2012)
COD: BO2 / MW3
Valkyria Chronicles 1 - 4
XIII
Left 4 dead, in my opinion. It's fascinating as it's attempting to look realistic yet doesn't look very dated. I think it's because of how good the animations are, and most of the game is dark and gloomy.
Also SCP containment breach. Not graphically impressive but its atmosphere and immersion simply isn't the same without them. I feel no other SCP games captures the atmosphere of Containment Breach.
Killer7, a very easy choice. That game's visual style will never fail to hold up for me.
Child of Light (2014)
Hi Fi Rush
I love suikoden and suikoden 2. I don't think they'd feel anywhere near the same if the graphics were changed.
West of Loathing. Timeless.
Sly Cooper
That and a new Wing Commander are at the top of my wishlist.
Batman Arkham series
Dragon Quest Heroes Rocket Slime
F-Zero GX comes to mind
Rayman
Furi
It's not super high fidelity, but goddamn is it pretty!
FF12 also.
More importantly, basically everything good on SNES still looks good!
The original releases of the Yakuza games did some amazing things with in-game animation that have to be replicated on modern hardware.
VVVVVV
Darkwood
Jumping Flash! for the PS1. Nothing else like it and I recently found out you can play it in a browser here: https://www.retrogames.cc/psx-games/jumping-flash.html
Battlefront II 2017 still looks gorgeous and like it could have been released yesterday.
Muramasa Rebirth/Demon Blade. Visually and musically spot on.
Also Gravity Rush - awesome soundtrack supporting a clear aesthetic vision.
Zombies are my neighbors
While heavily reworked through the years, I am continually amazed what they manage to do with World of Warcraft. Doesn't look much like it used to, but as it's all on the same engine, it's really impressive.
For me, MGS1. The tone of the game is really helped by its limited detail. It has the dark and serious mood throughout the game that just permeates this looming threat that is Metal Gear and the mysterious Foxhound unit. I think Twin Snakes doesn't look nearly as memorable or unique as MGS1 and I think a modern remake would lose a lot of the tone and atmosphere that the original had.
Oh and the artwork for MGS1 is just so incredibly good.
Sacred
