To save space, the blocks (8 instead of 10) are much smaller (about 4cm long) and the cards are printed with the diagrams of the buildings to construct on both sides.
There is no timer, one of the other players rolls the die (3, 2, 1, blank, blank, blank) until the result is equal to or greater than 15. Once this total is exceeded the current player's turn is over. After 5 rounds the player with the most points wins.