There are numerous add-ons each with their own aims and purposes. Some smaller add-ons add things such as seasons or achievements, while others are complete interface overhauls, and there are even a few cheat add-ons. Installing at least one add-on unlocks the Third-party shadow achievement. Note: Add-ons which names are in italics using a modding framework known as Cookie Clicker Script Extender
![Add-Ons](https://cdn-ak-scissors.b.st-hatena.com/image/square/67e16441110a36d2e25074b393bf430003862175/height=288;version=1;width=512/https%3A%2F%2Fstatic.wikia.nocookie.net%2Fcookieclicker%2Fimages%2F2%2F27%2FCookieClickerGardenHelper.png%2Frevision%2Flatest%3Fcb%3D20210816174517)