Sure! Here's an example of an idle click game implemented as a single HTML file using JavaScript:
Idle Click Game
Points: 0
Clicker 1
Cost: Free
Points per click: 10
In this game, you start with one free clicker that gives you 10 points per click. You can then upgrade the clicker to increase the points per click and unlock additional clickers. Each new clicker costs an amount of points that increases based on its number. Points are displayed at the top, and they decrease accordingly when you upgrade or buy a new clicker.