Adult PC Game: Mystic Knight Maya v0.7.9 by Mega Blue Ball Archive

Overview:
While exploring the island you will encounter its many inhabitants that wish to only do harm to the main character, but you will also meet some neutral NPCs that might help or hinder your journey.
It's a 2D action platformer with some light metroidvania elements, such as non-linear exploration, inventory system, special skills, dialogue, etc. You will start the game on the beaches of a mysterious island and from there you will be able to explore it at your leisure, trying to find a way to escape from it and discovering its mysteries.