This is not a standalone game.  A copy of Root is required to play. 

The Riverfolk Expansion adds two new actions, new vagabonds, and exciting new game modes.

Play as the Lizard Cult: Indoctrinate the dispossessed creatures of the woods and spread your creed far and wide.

Play as the Riverfolk Company: Capitalize on crisis. Offer services and expand your trade operations to secure your status as a merchant king.

Play as the Second Vagabond: Compete with a rival Vagabond to gain fame and fortune while the other factions attempt to secure their rule.

Play against the Mechanical Marquise: Wage war against the Mechanical Marquise in competitive or cooperative modes!