Mass Effect 2

Portal 2

rain world?

Doom

Obligatory Hollow Knight mention

Lies of P.

(it says so in the file name of the uploaded image)

Half life 2

Hollow Knight and Silksong

Probably Gris

Minecraft

Also Baldur's Gate 1 and 2

Super Mario World is a game that shows artistic design outlasts everything else. That game still looks and plays amazingly.

But I think the real issue is "looks good" is very subjective.

Mario Sunshine

Celeste

StarCraft and WarCraft series.

Anything can look good pre-rendered

Freelancer

It’s Lies Of P - they left it in the image file name.

Myst of course.

A lot of older 2d games can run on a portrait potato and the artwork holds up excellently.

RC2, civ 3, Anno 1602, sim city 3000, AOE2.

Dishonored.

Metal Gear Solid V: The Phantom Pain (Ground Zeroes as well)

Halo 3

lots of really good pixel art: Celeste, hyper light drifter, dead cells, etc

Braid. Assuming the graphics don't have to be realistic?

Bioshock Infinite , even my AMD Athlon II could handle it back in the day

Super Nintendo-era pixel graphics games like Chrono Trigger. Pixel graphics need a lot less computational power to look good IMO.

Similar for modern pixel graphics games like Risk of Rain.

Terraria

The Mad Max game from 2015 is surprisingly well-optimized.

I play classic wow private servers. Game came out in like 2005 so it'll run on whatever. The graphics are minimal and stylized to in a way that makes it timeless. Plugging wow-hc.com

Tloz minish cap
Donkey kong country 1,2,3
Super mario world

Painkiller, 2002(?)

celeste

TitanFall 2.

Metal Gear Solid V.

... maybe a slightly more impressive than average potato.

Amazing what you can do with a well optimized engine, eh?

Looking good is about artstyle more than realistic graphics for me so most pixelart games.

dwarf fortress

Warframe. They got it running on mobile, and it looks absolutely gorgeous. I myself ran it for a few years on a shitty graphics card that could barely run minecraft with a texture pack.

Dishonored

Selaco, hands down