mqstout: Hyrule Warriors. I generally love the "Koei Warriors" games. But that game -- more than any other? -- has too much content. WAY too much content. I played it TONS and never unlocked all tiers of weapons for the characters (before even "grinding" for particular weapons within them). I was just so overwhelmed with what it had that I... stopped going back to it. There was no way I was ever going to get through it all, so, I kind of dropped it from my rotation.
I already had too many characters to learn how to play with [you have to use a fixed set, sometimes specific one, in various missions required to progress] BEFORE they added even more in DLC. And this was all the Wii U version. The later DS added even more content, and the Switch port yet even more again (not that I have either handheld system).
So this is another case of, "loved the game, great game, but too much overwhelming amounts of optional/side content made me give it up".
This mention of "too much content" made me think of Cookie Clicker, which has quite a bit of content (including side content), and more is still planned, and I'm wondering if that game may reach the point of "too much side content".
In anything, I believe you need to use the garden to get to certain large amounts of cookies in a short time. (The biggest problem with the game is that it's just too long, and it also uses up too many CPU resources for what it is.)