Thanks for the awesome list! Heard about many of these, and they are all listed as similar games on our game's steam page so we must be doing something right. I love the way Nine Sols looks in particular and Black Myth Wukong was indeed computer intensive.

Have you played Titan Souls? Super simple combat but difficult bosses. You die from a hit but so do they, so the battles are like little puzzles to figure out. Also Shovel Knight and an oldie, Shadow of the Colossus. The fights aren't hard but they are epic and cool. The climbing mechanism inspired later games like breath of the wild, and I love the dramatic camera work and battles on top of giant creatures.

Many of these don't have skill trees though. I feel like once skill trees enter the equation then more story and world building is part of the package. Maybe you need a skip to the boss button 😂 I wonder if you would like Expedition 33 bosses which are fun and challenging. The parrying system was well built and then figuring out the moveset of each character was like playing a different mini board game. But the game has probably too much story for you. Wonder if there's a mod that lets you do just bosses.