Earth

The base box supports 1–5. Standard multiplayer uses four public Fauna objectives and two public Ecosystems. Each player selects a side of an Island, Climate and personal Ecosystem, then draws cards, composts from those cards and takes soil as their Island specifies.

Choose one of four actions on your turn; take its active benefit while everyone else follows. Green Planting lets you pay soil to plant up to two cards, one at a time, then draw four and keep one, discarding the others centrally. Others may plant one and draw one.

Red Composting gives the active player five soil and two cards from the deck placed unseen into personal compost. Other players choose either two soil or two cards composted from the deck. Compost is separate from the central discard pile.

Blue Watering lets the active player place up to six sprouts and gain two soil. Others choose up to two sprouts or two soil. Sprouts must fit empty sprout spaces on Flora and cannot be stored in reserve.

Yellow Growing lets the active player draw four cards and place up to two growth pieces. Others choose two cards or up to two growth pieces. Stay within each Flora’s maximum height and use a canopy as its final piece; excess growth cannot be saved.

After the action, matching Island, Climate and tableau abilities may activate once each that turn. Resolve the tableau from top left, row by row from left to right. Resolve Island then Climate together before or after the tableau. Red/blue/yellow multicolour abilities match those three actions, not green. Pay costs fully or skip an ability.

Only Flora and Terrain are planted into a tableau no larger than four rows by four columns. After the first card, each must touch an existing card along an edge or corner. Events are paid and played into their own area at permitted times, outside the sixteen-card limit. Newly planted green abilities may activate in that green resolution.

When you meet a Fauna objective during a turn, claim its highest available tier with a leaf. Simultaneous claims proceed clockwise from the active player. A claimed objective remains yours even if its condition later ceases to be met. Ecosystems score separately at game end.

The first completed 4×4 tableau earns seven bonus points and triggers the end of the current round, giving everyone equally many active turns. Score base card values, Events, one per composted card and sprout, growth/canopies, Terrain and Ecosystem bonuses, Fauna and completion points. Break ties by soil, hand cards, growth, sprouts, then compost.

Official solo uses the solo board side and a chosen Gaia difficulty. On your turn resolve your action before her following benefit. On her turn reveal a card from her six-card deck, resolve your upper effect first, then her lower effect. Use the deck twice. End the current turn when you complete your tableau or she finishes its second pass; the ending side gets seven points. Gaia uses dedicated scoring without Terrain/Ecosystem bonus points.