I recently finished Titan Quest (with the latest expansion), a Diablo clone. And I found that most of the gameplay wasn't just clicking: it was choosing on which enemy to click (to prioritise the most dangerous enemy first for example), when and where to use my skills/scrolls/potions; then outside of combat, which equipment to use, which skills/stats to upgrade, which upgrade to apply on which piece of equipment. Another important part was also the art style/ambience of the levels, which was an important part of my enjoyment of the game.

On the other hand I spent little time grinding and have little desire to play the game a second time on harder difficulty.

That is exactly the same as Diablo and all true. The metagame is moderately interesting and the artwork / ambiance / style (in Diablo 1, for me) is nice.

Yes, that's why I disagreed with the idea that Diablo = click on enemies until they're dead; it's a little more than that.

I enjoyed Diablo 2 a lot when I was younger but didn't care anywhere near as much for my experience with 3. I think the main issue is that with 2 I mostly played it in the same room as friends I was playing it with, and it was more something to do while we would hang out and talk to each other. I played with friends when I played 3 too, but it wasn't in person and I think that hurt it

I was old enough to play the Diablos, Starcraft and Warcraft when they came out. When I was kid playing Diablo it don’t bother me. When Diablo III came out I played it as an adult and realize it was just clicking. I hated the game. Starcraft is still nice but I don’t play it.

Almost bought Diablo for my Switch this year and recalled how much of it is just clicking.

Or perhaps Diablo III wasn't a very good game?