Game modification

A deck comprising:

• at least eighteen cards, each card embodying at least one game modification instruction, the cards being collectively functional via the game modification instructions to provide a modified game play experience by modifying game play of each of a plurality of original games;
• wherein the plurality of original games includes a checkers game, a chess game, a Chinese checkers game, a dice game, and a multiplayer property trading game having original game equipment which includes a board with spaces marked with property names and also includes dice and play money bills and property title cards and player tokens and event cards;
• wherein the game modification instructions collectively modify functionality by adding at least four of the following game play mechanisms which are not present in the unmodified original game:
• during game play returning an item of original game equipment to a location and a status which the item had at the beginning of game play;
• merging two teams into one team during game play, each team containing at least one player before the merging occurs;
• letting one player view and use items of original game equipment of another player for one turn during game play;
• changing player turn order during game play;
• during game play having two players swap all items of original game equipment which they possess or control;
• letting one player take a turn in the original game in place of another player's turn;
• taking an item of original game equipment out of play;
• preventing a player from being an ultimate winner of modified game play even though the player won the original game;
• limiting game play to a final round prior to determination of a winner in the original game;
• one player disclosing a hidden item of original game equipment to at least one other player;
• players trading seats without also exchanging possession or control of items of original game equipment;
• reflecting an action by an action originator back at the action originator;
• allowing a player to hold in their hand at last one extra item of original game equipment;
• or
• allowing a player to draw at least one extra item of original game equipment from a draw pile.