I have beaten [[https://youtu.be/Vj_lVOokdU0 Creepy Castle]] and am waiting for The Final Fist update.
Creepy Castle is a 2D action-adventure game (metroidvania?).
The protagonist, Moth (a moth) have heard that something suspicious is going on at said castle and investigate it.
Pretty soon, he learn that there is a thing called the Heartbreaker.
While you explore the castle, you will face opponent. At first, you will trade blow with them, both you and the opponent taking damage.
But that going for the whole game would be boring so mini games will randomly happens, giving both the risk and the potential of attacking or be attacked without any counter attacks.
For example, one of the mini-game is a quick draw where you must push the button as soon as the signal is given.
While the battle system did eventually get tiring in the late game, there is some creativity that was put in there that goes further than just easier or harder, slower on faster.
It especially show on the Pursuit mini-game which requires you to get stars without being hit by the enemies.
Some versions have enemies hidden as harmless objects and you must account for that. Some versions don't have a maze to trap you.
The visual is, from what I have heard, inspired by the Spectrum ZX graphics. 2D sprites with limited color palettes but the game make good use of them.
The in-battle and cutscene graphics have good more-detailed sprites.
I know not everyone like old school looks but I like it.

The music is good. There is a surprising amount of variety including rock, elevator music and Beethoven.

The story is good. After the original scenario, more scenario opens up, allowing you to see what happens overall.
Even the "free modes" where you play as characters you unlocked have things to shows.
Most of the story is told through text. I hope you don't mind reading. XD
The writing is good though. I hope you have a dictionnary nearby.

Several of the scenarios ending are great. Scenario 2B (Lost) is awesome and perhaps the stuff of legend.
It in any case didn't go in the way I expected.
I mean, despite the cutesy, some of the themes touched in the game are
The game isn't particularly hard but because enemies and items don't respawn, you must explore properly and make the most of your ressources without wasting.
Exploring is the main challenge of the game but some of the game scenario give you switch puzzles
The
Dark Souls Depths scenario deserve a mention as, since there is no items, save points heal you but respawn enemies.
You must thus find a way to find stuff or make permanent changes in the game and return to a save point (not always the one you came from) alive.
Anyway, I am happy I got this game. It's not the greatest game of all time but it's a good game that deserves more recognition than it currently have.
Now, if The Final Fist update could come out, the last scenario ended on a cliffhanger! XD