A fun game is automatically good, yes - as long as "fun" is agreed to be a subjective concept. On the other hand, critically lauded games can be boring as all Hell to some. I've tried my best to get one of my friends into Minecraft, to no avail. It doesn't mean that Minecraft is any less of a good game; it means that my friend didn't consider it to be a *fun* game.
OP is making it sound a bit like the "Chicken or the Egg" debate, when it's really pretty simple. Fun should be the absolute value by which games are judged. Extremely well-crafted products can meet with disappointing sales, which might be a case of bad marketing, but also a case of the game not knowing how to reach its audience.
So, IMHO, Fun = Good, while Good =/= Fun.
OP is making it sound a bit like the "Chicken or the Egg" debate, when it's really pretty simple. Fun should be the absolute value by which games are judged. Extremely well-crafted products can meet with disappointing sales, which might be a case of bad marketing, but also a case of the game not knowing how to reach its audience.
So, IMHO, Fun = Good, while Good =/= Fun.