This is the primier space-strategy game. Nothing compares to it in the past, and I compare every space-strategy game coming out now against it. MOO had this unfortunate comparison and honestly, it did not measure up well.

Stellaris is just huge. Planets, regions, fleets, resources, etc. The expansions only make it better.

This is a MUST play. There is a learning curve due to its immensity but well worth the time to learn the game.