I love this so, so much! Thank you for putting your time and effort into this; it's really very strong, and I appreciate the fluidity of the controls and attention to detail, especially with the enemy descriptions.
That being said, though, I am attempting to use this on a laptop, and I have a few suggestions. (Emphasis on suggestions! From the changelogs. you really seem to know what's up, and I know this is likely a hobby and these things take time, so I don't want to stress you out or anything like that.)
With Windows 10 being Windows 10, I don't have the ability to use a middle mouse button/middle click on a trackpad (unless I were to just, y'know, use a computer or get a mouse lol. I've looked into the settings and I think I'd have to tamper with the laptop's registry to map middle button functions, so I'd rather not attempt that.) Since CastleMaker is still in development, I'd like to request some alternate controls to be implemented that don't require the middle button. I'm assuming other people may eventually run into this, too. The controls as they are now seem super convenient for a mouse user, though.
The other thing I'd like to request/suggest, probably for an update way, way down the line, is the ability to import custom sprites. To be completely honest, I only know the basics of coding and I'm not exactly sure how difficult this would be, so I apologize and understand if that's asking too much. On a sidenote, Super Mario Maker has the ability to switch between different graphical styles, so it would be cool to be able to swap between, for example, Simon/CS1 and Soma/AoS era graphics. I'm guessing you've thought of that already, and I know I'm jumping ahead here, but it might be something to think about in the future.
Again, thank you. I hope you continue with this project, and I'm grateful for what you've accomplished so far.