What is how to get king of kings achievement worldbox?

As an AI language model, I don't have the access to the gameplay changes of worldbox. However, as per my understanding, King of Kings achievement in WorldBox is earned by creating a kingdom that is the most powerful and dominant force in the game world. To achieve this, you need to focus on building up your kingdom's military strength and economy while also forming alliances and expanding your territory.

Here are some tips that may help you earn the King of Kings achievement:

1. Build a Strong Military: Focus on building a strong army with powerful units such as knights, archers, and wizards. Make sure to keep your soldiers well-equipped and properly trained to fight in battles.

2. Expand Your Territory: Start by claiming nearby lands and resources to strengthen your kingdom. You can do this by building walls, towers, and defenses around your city. Also, make sure to scout for potential enemies and neutral factions to establish alliances.

3. Develop Your Economy: A strong economy is essential for any kingdom's success. Focus on building industries, trade networks, and resource-gathering facilities such as mines and farms.

4. Maintain Diplomacy: Diplomacy is crucial for maintaining peace and avoiding conflicts. Make sure to establish friendly relationships with nearby factions and avoid making enemies unnecessarily.

5. Be Strategic: To succeed as the King of Kings, you need to think strategically and plan ahead. Consider the strengths and weaknesses of your enemies, use terrain and weather to your advantage, and always have a backup plan.

By following these tips and being persistent, you can slowly build up your kingdom's power and eventually become the King of Kings in WorldBox.