Assuming that “masterpiece” refers to the quality and impact the games had in their time (not how well they aged) some of my picks would be:
Baldur’s Gate 2 + ToB
Star Wars: KotoR
Morrowind
Read Dead Redemption 2
The Witcher 3
The Last of Us 1+2
God of War
Shadow of the Colossus
The Legend of Zelda: BOTW
Mass Effect 1+2
Disco Elysium
Half Life 2
BioShock 1
Diablo 2
Fallout 2
I don’t know how objective this list is. Some picks are definitely subjective and fit more in a “flawed masterpiece” category of games that had a large impact on how I perceived games but that may not be so widely acclaimed as some others on this list.
Assuming that “masterpiece” refers to the quality and impact the games had in their time (not how well they aged) some of my picks would be:
I don’t know how objective this list is. Some picks are definitely subjective and fit more in a “flawed masterpiece” category of games that had a large impact on how I perceived games but that may not be so widely acclaimed as some others on this list.
You could probably add E33 to that, even if it is still too early to know how much impact it will have.