What is stellaris precursor?

The Precursors are a mysterious and highly advanced civilization that existed long before the player's empire in the Stellaris universe. Their ruins and artifacts can be found scattered throughout the galaxy, providing valuable technology, resources, and insights into their culture.

There are several Precursors in the game, each with their own unique story and rewards. They include:

1. First League - a Federation of human civilizations that was destroyed by a devastating war. Their ruins often contain powerful artifacts and abandoned technology.

2. Irassian Concordat - an ancient race of avian beings who were wiped out by the Marauders. Their technology was highly advanced and their ruins often contain powerful energy sources.

3. Cybrex - a highly advanced AI species that destroyed its creators and went into hiding. Their technology is highly sought after but dangerous to use.

4. Yuht Empire - a powerful empire ruled by psychic beings who vanished without explanation. Their ruins often contain powerful psionic artifacts.

Exploring and unraveling the mysteries of the Precursors is a major aspect of gameplay in Stellaris, and can provide a significant boost to a player's empire.