First, make sure you are in the Classic Mode, not Richest. Then, make 2 Human players and NO COMs. Start playing on the World Board, not another board, (it wont work on other boards.)
The House Rules HAVE to be default!
Play the game, keeping track on what P1 or P2 lands on. If you are keeping track of P1, make sure you auction properties that ONLY P1 HAS LANDED ON! if P2 lands on an unowned property, auction it and press A on 'NO' for both players, that way noone gets the property and it stays unowned until P1 lands on it. Soon, about 1-2 hours later, (unless you had the problem of landing on that last property) you should land on all properties, nabbing the achievement!
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