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Since I was little I've wasted time clicking and clicking on these games; I admit it's more of an addiction shared with a few than anything else. I spent hours and hours on cookie clicker and others of that kind...
It's certainly not a style for everyone, but the thrill lies in seeing the numbers grow and things happen. Some are more idle, so it's more about starting and reaching the point where clicking is no longer a requirement for progression, while others made me click until my finger starts to hurt.
But still, they all had some unique quality that made me keep going.
I decided to try and make my own clicker game, but I'm still not sure how to make it interesting. So far I've only designed some t-shirts and karate belts. If this style of game interests you, I need your feedback to figure out how to make it appealing, some ideas to implement.