Given our geographical location, we're awake earlier than the rest of the world, but that also means it's still the weekend in places that aren't Australia, which also means the Halloween celebration is still kicking, and you can still pick up Sam & Max: Night of the Raving Dead for free from Telltale Games as part of that Halloween celebration.
In order to do so, and before the clock strikes Monday the 1st anywhere else, just head over to the official page for the S&M episode
right here and grab the game, if you're not already a member of Telltale's site, just sign up for free - apparently it's quick and painless.