Only played this a couple times so far but it’s a really neat game. The theme is darkly funny, a bit like the humor you find in Fallout or Portal.
That said, the theme only goes so far as you focus on building the best engine you can to survive disaster after disaster.
The game scales well at all player counts since everyone plays simultaneously. And I find it more engaging/interactive/rambunctious than Earth, while still providing opportunities for building combos in your tableau.