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. Railroad Ink Challenge Dice Expansion Electricity Pack.Note: a Railroad Ink core game is required to use the Dice Expansions Use the 4 special dice of the Electricity Expansion Pack in addition to your regular Route dice, and find new ways to score points: Street Lamp (2 dice): build Street Lamps and power them with Generators to light your board and score a lot of points and Power Grid (2 dice): connect your Exits to the central Accumulator and charge it with electricity to multiply your bonus points