Originally Posted by
Fencers
This is totally correct. As is typical, the concept with which this question is being asked by a player is poor.
If the OP asked the question different or listed more concrete examples the answers herein would be deserving of some more granular aspects of VG discussion. But if a user is posting, "fun", "immersion" or "engine" (highly dubious) is essentially saying; "gameplay". Because those are aspects of gameplay by which the player interfaces with the language of the game itself.
There is nothing, and this can never change, be anything in the medium of video games to consider higher than gameplay. It is literally the cause and method by which any agent can even play a video game.