Railroad Ink Challenge is a quick playing roll and write game for 1 to 4 players. Grab a board and a dry-erase marker and get ready to reach networking nirvana. Expand your gaming experience with the super-colored, super-fun, super-crazy Dice Expansions for Railroad Ink Challenge. Every expansion adds a new layer to the game, changing it in unexpected ways and allowing new strategies to be explored and mastered, even for seasoned Railroad Ink Challenge players. Features Each turn, a set of dice is rolled in the middle of the table, determining the type of roads and railroads to all players Use the 4 special dice in the Electricity expansion pack in addition to your regular road dice Includes: Street Lamp 2 dice Power Grid 2 dice Specifications Ages: 8 years & above Number of Players: 1 to 4 Duration: 30 min Weight: 0.07 lbs