How to interact unity and data?

How would I create a data area that interacts with unity?

Like where you make an account on a website and thats what you use In-Game.

More importantly though:

I have a game that will be doing an open beta, but I do not want ppl to continue playing the beta once it is over, how could I make so when I do something on some data platform (like a website or something) that they can no longer get on, like where they are on the main menu and when they try to press login it wil ltell them “Beta is over” or “Welcome to the beta”.

Typically you’d set up a website with some database running on it. You’d write some code on the website (often in PHP) that implements an API that allows the game to talk to the database. From Unity you’d talk to this server using WWW and WWWForm APIs. Check out the Representational state transfer page on wikipedia. There is nothing in Unity that makes this easier, or more difficult. Since your game client is going to talk to a server it’s important that you protect the transmission of data, in which case you’d want to read (and understand) cryptography, for which this is my usual reference.

Thanks for the response, how would I start writing the code to talk between website and unity? Because I have a domain I could use to do this with.*

Here are the classes mentioned in Graham’s post

WWW
WWWForm