Blacklight Retribution was pretty great. I played quite early in its lifespan, during an event which gave me a special nameplate - nothing more than a participation trophy, and at the time, loads of people used it.
Signed in a few years later to.play a few rounds, and some guy begged me to let them use my account because of that now-rare nameplate.
(I also had an extremely cool helmet and some seriously powerful guns I got for free in that game's equivalent of a lootbox)
I like Anno 2070, a game which takes place in a world where the sea levels have risen to a barely-sustainable level. But it's okay, because you can repopulate with the power of solarpunk machinery!
It was pretty big, and I believe it was Nintendo's main competitor for a while. Just didn't quite break out to the rest of the world, and it never got a proper followup
The Amiga was tricky to develop for, particularly if you wanted to use all its custom chips to their full potential. So many Amiga games are just questionable ports of Atari ST or even 8-bit home micro games.
The PC Engine was really ahead of its time, but it's now kind of an obscure little thing, and a bit quaint when put up against the SNES and Mega Drive.
https://store.steampowered.com/app/1343370/Old_School_RuneScape/