How do you create a basic LOGIN on unity? (THE LOGIN IS INSIDE THE GAME)

How do you create a basic LOGIN on unity? (THE LOGIN IS INSIDE THE GAME) Please i need alot of help here!

Look at the documentation for GUI.textField and GUI.passwordField. You'll end up caching some strings that correspond to the login name and password, then probably using either an external/web resource or playerprefs (locally) to compare the inputs to verify they are correct.