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.
Open world RPGs were always the goal, old games tried to mask the hardware limitations by using several techniques. By the time the Witcher 3 came along open world RPGs were the most common thing, in fact at the time lots of people called the Witcher a sellout because of that, it’s like if it had come up a couple years ago and had base buildiechanics, EVERYONE else was doing it.
There are LOTS of examples that pre-date TW3, I’ll limit myself to a few, just because it’s the ones I played. In the 90s and early 2000s I used to play Ultima Online, which is an MMO from 97 that has a vast open world. But if you want first person, Oblivion is old enough to drink.
