I hadn’t played so I just checked out a beginner’s guide and I don’t think they’re very similar at all.

In FTL you’re pretty much going from point to point on a map which mostly have encounters with single ships. You try to collect resources for upgrades or new weapons. At shops you can repair or buy things, and you’ll find new crew members there or organically through events. There are a few different ways to do combat (different kinds of guns/missiles, drones, or boarding enemy ships), and everything builds to a boss battle in the final sector.

I’m sure there are some vids that can lay out the basics in a few mins, but if it sounds anything like a genre you’re interested in I’d say 3 bucks is a steal for it. As a roguelike it’s got a lot of replayability.