Nature is a card-driven tableau-builder played over four rounds. Each round is split between the Adapting Phase and the Feeding Phase.

Adapting Phase:

Use five cards as actions to do the following:

• Increase Population
• Increase Body Size
• Play as a Trait to power up your species
• Save to be used as food during the Feeding Phase

Feeding Phase:

Feed as many of your population as possible. At the end of the round, players get 1 point for each population they kept alive. The winner is the player who kept the most population alive over all four rounds