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Learn how to master diplomacy in Spore, from understanding relationship statuses to avoiding war. Also, discover the essentials of terraforming planets for colonization.

Diplomacy is crucial in Spore to prevent your colonies from being destroyed or captured. Diplomatic states range from -100 to 100, with statuses represented by colors: Red (active war), Orange (brink of war), Yellow (neutral), Blue (trade enabled), and Green (trade routes established).

Initial greetings can provide a relationship boost, especially with the ultra-happy greeting. Sharing the same trait as another nation also grants a bonus. Bribing with Sporebucks can improve relations. Completing missions for an empire significantly boosts happiness. Establishing trade routes and having one of their ships in your fleet when in the green phase also helps.

Embassies on their planets are safe and provide a boost. The Happy Ray and completing prompted missions, like defending their bases or biodisasters, also improve relationships. Conversely, stealing resources, breaking the Galactic Code (using Gravitational Wave, Fanatical Frenzy, or Planet Buster near them), or allying with the Grox will lead to negative consequences.

Failing missions, losing their ship in your fleet, moving into their territory without good relations, or bad behavior on their planets (like unnecessary terraforming or using the HYPERDEATH laser on citizens) will decrease relations. War severely damages relationships and can lead to demands for large sums of Sporebucks to end, even for minor colonies.

Hostile nations will attack your colonies, requiring defenses like turrets. Friendly empires offer cheaper energy and health refills, the ability to purchase their systems, and form alliances. Being friendly also allows for establishing trade routes.

Terraforming is essential for creating habitable planets for colonies and spice. Planets are scored T0 (uninhabitable), T1 (1 colony), T2 (2 colonies), or T3 (3 colonies). Key factors are atmosphere and temperature. The terraforming score is indicated by a dot within concentric circles, showing how close the planet is to T3.

Extreme temperatures (too low or too high) and atmospheric conditions can damage your ship. Modifying atmosphere and temperature is necessary to suit your creature's needs and achieve higher terraforming scores.