Tributary - Supplement to Source of the Nile Tweet Description Expansion for the Discovery Games edition of 'Source of the Nile'.Expands: Source of the Nile - BoardGameGeek Details Ages: 12 and up Category: Adventure, Expansion for Base-game, Exploration Designer: (Uncredited) Players: 1 to 6 PrimaryName: Tributary - Supplement to Source of the Nile Product Title: Tributary - Supplement to Source of the Nile Publisher: Discovery Games Time: 180 minutes Year: 1978
