This is a free to use login sign up script: read the code and change the event to start this script and the action after signing up/ loging in to what ever you need in your project. the "comment" variable will explain you important parts for customization of this project. Remix this project and copy the sprite login operator into your backpack to paste it in your project A example use case is to store a players score on his account by storing the score at the same number in the list as the username and password, and calling this information after log in
Note: the passwords and usernames aren't securely stored, because anybody can view the lists storing those information through viewing the code of the project. you can still use it to sort information from your project according to user