This is my first attempt at creating a web-based game and I have some questions about the necessary technologies. Specifically, I want to enable users to gather items and save their progress within the game. Currently, I am focusing on mastering HTML, CSS, and Javascript. However, it seems that I will also need a server-side language like MySQL or possibly jQuery for saving user data. Can someone offer guidance on the best approach for this? Any help would be greatly appreciated. Thank you.