The first thing I always pay attention to is progression. A good clicker should constantly give a sense of progress, otherwise it will quickly become boring. It is important that there is some goal: to collect resources, open a new level or upgrade. The second is variety in mechanics. Simply pressing a button can be fun, but if the game does not offer something new after 20 minutes, interest quickly disappears. As for graphics – yes, this is important, especially if you like the visual component of games. Of course, clickers do not have to be visual masterpieces, but nice graphics or at least a pleasant atmosphere will make the gameplay more enjoyable. By the way, if you want to experiment with games and are not afraid to spend a little time searching, you can go to https://gametop.in/, there is a whole section with free games, including clickers. A good option to find something to your taste and not spend money.