What is "SQL"?

Unity Engine
1

I heard it has to do with networking, and log ins. Could I make my game use it to make my game multiplayer?

2

Structured Query Language.

It’s a language for managing data in databases.

Google is your friend.

3

Oh, doesn’t sound like it could hel with Multiplayer then.

Also does anyone know what the master server file unity gives does, and how to make it run, I can never get it to work. (I mean does the file actualy make people able to connect to you, if so how to set it up?)

4

Sure it helps with Multiplayer, It stores as a database saving all your information onto it E.G Weapons, Money, Inventory and such.