The original [Shark Game](https://cirri.al/sharks/) is a web game written in HTML, CSS and JavaScript by [Cirrial](https://cirri.al/).
It is a game belonging to the "idle" or "incremental" genre. It does not require constant player attention, and can progress while the player does other things before returning to it. This isn't in any way a new or pioneering concept - a lot of people have probably heard of [Candy Box](https://candybox2.github.io/) or [A Dark Room](https://adarkroom.doublespeakgames.com/), or the more popular contemporary [Cookie Clicker](https://orteil.dashnet.org/cookieclicker/).
Cirrial originally developed this game for Seamergency 2014, but continued to develop it afterward. It quickly became a niche favorite among idle game enthusiasts. After a string of updates, Cirrial dropped development in mid-2015. The final version is v0.71.