In all, it contained an additional 28 cards for the game.
To put a building into play, simply place it in front of you, and then discard additional cards from your hand equal to it's price.
Upon playing a king or an ace, a player can choose to play an additional card as well.
The Train: each player draws an additional card at the beginning of his turn.
This has no impact on game play, but it means there is an additional card in the kitty.
Performing well in these games can also grant additional cards.
So what happens is they take on one additional card.
It was free to download and play, with additional cards available for purchase.
They must pay 1 coin and take an additional card from the deck.
This energy is used to play additional cards or activate effects.