Melvor Idle Review (OrangePanda)
By far the best idle game I have ever played.
The experience is a lot more calculated and patient than other idle games but feels far more rewarding. You are constantly encouraged to try out new areas of the game because 'if I just did Skill B, Skill A would be more efficient, and Skill B is more efficient if I just do Skill C, etc." which leads to a lot of organic exploration of the games skills.
If you are looking for an idle game that has crazy exponential "number go up" mechanics you might be better served with games like Leaf Blower Revolution or Cookie Clicker. However, if you are looking for a measured Runescape like progression system with a plethora of skills to max out you will not be disappointed with what Melvor Idle has to offer.
You can even try it for free at melvoridle.com