Porkies have to spent billions of dollar in researching psychology to create an insane emotion manipulation system in their games to even reach the level of addiction Tetris reached decades ago. Something Tetris achieved by pure good gameplay.
Imagine if the USSR still exist today (:ussr-cry:), we would've seen a game so good we would just straight up fucking dies.
edit: Considering that games from post-eastern bloc countries continues to blow away western and Japanese in the terms of creativity means that this isn't really a joke. :lt-dbyf-dubois: made in the Estonian SSR would send you writhing on the floor speaking in tongues.
Pathologic is proof that the common ideas about "good game design" are bullshit. At the end of the day, games attempt to create an emotional state in the player, and the path to that end is as varied as any other artistic medium.