A natural evolution of the gameplay and aesthetic found in Shrine and Shrine II. Take the vibe from those games, add a heavy Metroidvania aspect to it, and you've got Vomitoreum. My quick and dirty suggestion is to try both Shrine games (or at least Shrine II), as they're both free, and if you dig the vibe, pick up Vomitoreum to show some love to the developer. I really appreciated the different types of gameplay and exploration options drip fed throughout. Nice variety of weapons, though some enemies felt a little on the tanky side for sure (less so than a few Shrine enemies, for what it's worth). But it's clear that the dev took a lot of learnings from the Shrine games and built something really cool out of it. Worth the cost of admission if you're into boomer shooters, especially those with Metroidvania leanings. If I had to guess, it took me 3-4 hours to play through in its entirety.