Forest Shuffle is a 2-5 player card game where players create a balanced forest ecosystem by strategically placing tree and animal cards. The goal is to score the most points by fulfilling the specific habitat and species requirements of each card. Gameplay involves drawing cards, paying costs to place cards in your forest, and triggering card effects and bonuses. The game ends when the third winter card is drawn, at which point players tally their points to determine a winner. The rules include detailed explanations of card types, gameplay mechanics, scoring, and setup procedures.