Im using he online version.
is there any possible version to put like a "password" to a computer?

do you mean within your game (aka during game play), there's a 'computer' Object that requires you to provide a 'password' for it, or do you mean outside of your game, to prevent people from playing your game (accessing your game file) ???

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in-game:

http://docs.textadventures.co.uk/quest/
http://docs.textadventures.co.uk/quest/guides/
http://docs.textadventures.co.uk/quest/ ... kdoor.html
http://docs.textadventures.co.uk/quest/ ... tiple.html
http://docs.textadventures.co.uk/quest/ ... _case.html
http://docs.textadventures.co.uk/quest/ ... witch.html
http://docs.textadventures.co.uk/quest/scripts/if.html

hope this helps!