How can I join a game in Roblox?

I'm curious about the process of joining a game in Roblox. Could you elaborate on the steps involved? I've heard it's a popular platform for users to create and play games, but I'm not sure how to get started. Is there a specific way to browse available games? Once I find a game that interests me, how do I actually join? Do I need to create an account first? And is there a limit to the number of games I can join? I'd appreciate any guidance you can provide in joining the Roblox community and exploring its vast array of games.