If you haven't checked out Roving in the Dark yet, then it's time to get your gloves & rope and get to spelunking! With a awesome retro asthetic explore the depths of a massive cave system, rescue stranded cavers and find the secret treasure! Collect new climbing tools to help go further in this metroidvania like game that has been called "a damn fine game that not only looked charming but had a high enjoyment factor". Here is some media on the game!
https://www.youtube.com/watch?v=MMZbnegwCFQ
http://www.indieretronews.com/2018/08/roving-in-dark-charming-cave.html
https://store.steampowered.com/app/910150/Roving_in_the_Dark/