[NotGMan]

Optimal gameplay balance != fun gameplay.

Many games were ruined post-release because developers tried to make the gameplay "more balanced". This usually leads to everything feeling the same.

Helldivers 2 was a good recent example, which is suprising since it's not a PvP game at all but a co-op PvE only.

[Rhapso]

well, extract a good metric for "fun" (like engagement) and make that the optimization criteria. It would be equally as easy.

[adastra22]

There is no good metric for fun.

[mattigames]

Call of duty occacionally asks you after a match if you had fun (5 options from "boring" to extremely fun), I bet thats a good metric for fun.

[teamonkey]

Heart rate, pupil dilation, breathing rate…