he case has a case body (1) which can be double folded into a style of a pocket notewbook so that it can be easily put into a pocket of a player`s clothes, etc. The case body (1) has on an inner surface of one element (1b) a pocket portion for receiving a game board (6) which can be likewise double folded. The case body (1) also has on an inner surface of another element a chamber (2) formedx of a transparent synthetic resin thin board. This is adapted to withdrawably accommodate a tray (3) having sections (3a, etc) in which various kinds of game goods (4) to be played ont he game board are stored.