Two new factions are added to the forest fray.

The Riverfolk expansion includes:

 A New Core Faction: The Riverfolk Company
 A New Core Faction: The Lizard Cult
 An Extra Vagabond
 One Card Holder For The Riverfolk Company
 Cooperative Scenarios
 Rules for Bot Play
 and Three Additional Vagabond Variants


This expansion now allows Root to be played with 1-6 players.

—description from the publisher