I was trying to think of which games created certain mechanics that became popular and copied by future games in the industry.
The most famous one that comes to my mind is Assassin’s Creed, with the tower climbing for map information.
I think Spyro was the first mainstream game to standardise achievements, you could do random stuff in-game and it gave you a little pop up
Which one did that?
I believe the very first one had skill points that unlocked an extended ending and game art.
Mortal Kombat for the Genesis did that though. Every once and a while on good hit, little dude would pop into the corner and call out, “Toasty!!”
Really makes you feel like you achieved something great
Just a heads up that I think you replied to the wrong comment in the chain