Yeah it’s just a great formula. Some mechanics and gameplay loops just lend themselves to better experiences and the Metroidvania formula is a great example of that.
I’ve actually been working on a top 10 Metroidvania games—which will probably be top 25 when it’s all said and done. There’s been an explosion in the sub-genre lately, with 2018 being a banner year.
Can't wait to see that when it's finished. Yeah, 2018 certainly brought me quite a backlog that I'll probably never get to. That's why I love these lists so I know which to work on first.