Today #CookieClicker is 10 years old! It's a great game to demonstrate how a simple game mechanic can be very satisfying and even addictive. It popularized the #IdleGame genre. I still play it from time to time.
Congratulations to Orteil and Opti for this success!
You can play it for free in the browser or buy it on #Steam to get hundreds of #achievements. But be careful not to waste your time with it and work on real achievements in life!