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.
^ This. So much this.
Used to play Warframe pretty religiously with wasd, where shift was part of a key movement combo. After a year or so, developed significant pain in my left pinky.
Shifting to esdf was damn awkward for about 2 weeks. The sheer pinky comfort though.👌