No pausing. It’s real-time only, but it’s built that way. As I mentioned in the review, some of the doo-dads are based on how much attention you can devote to them, such as timing the defenses or manually flying some of the missiles and attack ships. Because of these kinds of doo-dads, Worbital is necessarily partly an action game.
Well, that kind of sucks, since it really shines as a skirmish against the AI, and especially since you can just do this to your heart’s content to unlock all the unlockables (i.e. no mandatory campaign play or online games). I guess they’re hoping the demo boosts the game’s online presence?