Skyrim
If we’re talking playing it for the first time in today’s modern gaming landscape, probably Earthbound. It’s the “Odyssey of videogames” for me, storywise, with graphics that are still charming in their simplicity, and gameplay that remains mostly mechanically sound (inventory space limits :-\).
If we’re talking about being able to return back to the time of and experiencing a game for the first time again in that day’s landscape, there’s just so many but I think I’d settle on Doom. It was just so much more graphically ahead of the console stuff I was playing at the time, and a hell of a lot more my style of pc game compared to the slow-paced likes of Monkey Island and Leisure Suit Larry that had been in my pc gaming rotation.
Either MGS1, Tenchu:SA or Saints Row 3rd.
Also for those that said half life 2. Tuck. That game sucked in 2004 and continues to suck into 2019.
Nier Automata