I played aura kingdom, i had a BLAST...
BUT...once you hit 55 all you have to do, really all you have, Daily quests, dungeons.
That's it...Dungeon runs and 3-4 daily quests from 50-60...EVERY DAY, same stuff, u can't kill monsters for exp, only daily quests and dungeon exp from bosses.
The Dungeon keeps it fresh since there's a planty to choose from but at some point it becomes too boring.
Things that u really want are TOO HARD to obtain and require WEEKS of GRINDING..
I loved it..it was so much fun...but I really can't stand the same 3 quests...and same 3 dungeons.
And can't obtain stuff I really want...
Tried Eden Eternal...it's same thing but WAY less fun
Other games from that's "action click and wait" genre?
Yep. I'm not sure if you are aware but both games are from the same developer and all their games are like that.
My favorite "action click and wait" game is still Ragnarok Online. And while it is grindy, it's grindy in a different way. The world is huge so you always have something to explore. You don't grind dungeon you just go to maps and fight masses of monsters. You always have 10+ different maps at the same time where you can fight monsters, so if you're new to the game you won't easily reach a point where you've seen all you can.
If you're looking more for 3D style... hmmmm, I guess you should look out for older games that are still alive. The older the game, the more content it has. And if it didn't die after 3 years chances are good that it actually has good endgame content.