It's impossible to talk about Vampire Crawlers without referencing Vampire Survivors, so let's get it over with. The optimal way (and I won't hear otherwise) of playing Vampire Survivors is to get so powerful that the game plays itself. I want to put the work in, so I don't have to work at all. After playing Vampire Crawlers for around 20 hours, I can tell you that it's the same thing here.