I was a Kickstarter backer, and I wasn't sure I had made a good choice at first, during the beta, but now I'm glad I backed this game. It's incredibly addictive, with that "just one more turn" gameplay mechanic (like Stardew, or Civilization). I'm not horribly far into the game yet, but it seems like there's a good bit of variety, at least for this style of game, and the game does a good job of introducing it over time instead of dumping everything on you at once. Regarding the dungeon-diving part, the game is challenging without being punishing. I've only played a tiny bit of Isaac, but I would say Moonlighter is much less hardcore, though still not a casual game. The controls seem responsive enough for the level of difficulty. And although you are, in a certain way, under a timer when in any particular dungeon, you don't really feel rushed. One last thing, if you're a mouse-and-keyboard type of person, don't try to fight it, just use a controller. I tried to use the keyboard and hated the game. I gave up and used a controller and loved the game. The keyboard interface is really terrible.
Looks like a promising game. I could see myself getting lost in it, if it weren't for some problems. There is an attempt at a tutorial, but it's severly lacking. It helps you through a few basics, but there's so much about the game that's left completely unexplained. The interface is okay for the most part, but is needlessly tedious in some areas, like navigating lists. I don't mind the multiple screens for different functions, and like the old-school command line interfaces on some of the terminals, but overall the UI needs work. Repairing components in the ship is a great concept, but poorly executed here. It is tedious to go through your various systems and pull out the damaged parts, because of the UI. There's also absolutely no indication of the differences between the versions of the various compoents. The game is really buggy, too. I've crashed a number of times, which means I lose quite a bit of work. That makes me unhappy, and less likely to put any more time into the game right now.