Two more or less important games missing, which I want to add are Outlaws and Doom 64.
Outlaws is a western shooter from non other than LucasArts.
https://www.youtube.com/watch?v=L-Agkdkr12s
More important though is Doom 64. Which is very different from the original Doom and I do like the atmosphere a lot.
https://www.youtube.com/watch?v=N2W2LzDZHQI
As I wasn't a console player back then I didn't play it originally (didn't even now it existed at all), only now with the remastering. And I do like it.
Although another game from the year, which I indeed played back in the day, I do like also a lot.
https://www.youtube.com/watch?v=o_Kr5i5F43U
It is a hard decision between Diablo and Doom 64, both are great games (although the walk speed in the village in Diablo was infuriating). I have to give it to Diablo, it is the start of an important series, it is one of the more well-known rogue likes (as in: the devs actually wanted to make a graphical rogue clone), it has also spawned a subgenre. And this first game nails the atmosphere and wasn't that egregious with the loot stuff, which expanded sours the game. But in this first entry the random loot is somewhat reasonable.
This year has a lot of important games I haven't played yet and should. This includes Final Fantasy VII, but more importantly I am sure Final Fantasy Tactics is right up my alley. Also this marks the year the first Age of Empires released, which I haven't played. I also missed out on Zork: Grand Inquisitor. And Fallout I have definitely to play one day. I also heard MDK is a pretty cool game.