as said it’s impossible to answer, too many to mention as with each jump in technology certain games just made you go WOW!
but my 5p worth
manic miner, fond memories on the spectrum
shadow of the beast on the amiga, purely for the OMFG jump in technology, graphics and sound
bubble bobble is still al classic
tomb raider on ps1, again massive jump in graphics
metal gear solid was another WTF moment
GTA III, first 3D world, madness
i know its rose tinted specs but its just not the same these days, were almost spoilt and were spoilt for choice.
the only game really to make me sit up was unchartered 3
ps- did any of you ever play a game called ‘midwinter’ on the amiga, that was amazing!