Hieracosphinx
That’s a tough question. There’s a handful of 3D space combat games like Everspace, Starlink, or Manticore: Galaxy on Fire. There’s also bullet hell games like Galacide and AstroWings: Space War. But none of those are quite like the more open top down games above. Your best bet to find something might be to ask on a larger Nintendo forum. I hope you find something!
Star Valor does look great. If you’re on Mac or Linux you can play Endless Sky or Naev, which are both free. Or outside Steam try Starsector, which might be the best 2D space game on the market, or The Ur-Quan Masters; a continuation of Star Control 2 and also free.
I almost included Lingo on my list because I’m playing it right now and loving it. But I’m only 6 hours in so I didn’t want to make presumptions about anything I’ve not experienced in it yet. What I’ve played though has been fantastic. I like it quite a bit more than The Witness.
The Ascent is a longer game and leans harder into RPG elements than Ruiner ever does. For me, Ruiner ran better and like @Catastrophic235@midwest.social says, the music is incredible. Blows The Ascent’s soundtrack out of the water. Ruiner might have slightly tighter controls too, but I’d have to replay to confirm since I played it with a mouse/keyboard while I played The Ascent with a controller.
Have you played A House of Many Doors? It’s very similar to the Sunless games, although not as polished.
Have you played Colony Ship, by the same devs as Age of Decadence? I’ve been keeping an eye on it for a while and looks to be real close to its 1.0 release, but I’ve not heard or read a lot about it.
