In Stellaris, players manage an interstellar empire, exploring procedurally generated galaxies filled with diverse planets and alien species. The core mechanics involve resource management, diplomacy, and military strategy, allowing players to choose between peaceful exploration or aggressive expansion.

The storyline of Stellaris revolves around the player's journey to establish and expand their galactic empire, encountering various alien civilizations and anomalies that shape their narrative. Players must navigate complex relationships and make strategic decisions that impact their empire's fate.

Stellaris stands out with its deep and varied exploration mechanics, featuring an advanced diplomacy system and a ship designer that allows for extensive customization. The game's stunning visuals and emergent storytelling further enhance the immersive experience of space exploration.