Good work on the game Rando
Some gripes I had while playing was batteries that are corner placed were not easy to refill while indoors. perhaps a nearest neighbour could take the battery juice as well.
This one is more personal as well, but I have a hard time pressing spacebar easily to place/pick up blocks while also using wasd to navigate. I'm more familiar with the arrow keys in a scenario like this or using another key for interaction if wasd is used.
Additionally escape is a strange choice for starting the game. The interact button might have served better here.
Some insight for future work that should have reusable code for different projects.
Controller detection / Simple controller support
Main Menu into game initialisation
Settings. This goes a long way as you have volume, controls/key mappings, and resolution/screen settings.
Something to avoid in the current project is needing to use a mouse on a game that can be navigated primarily with a keyboard. like when restarting after failure.
Also seeing as the game comes without any form of instruction on controls or usage, it might be nice to update the itch description to give players more insight on core gameplay requirements. This doesn't mean spoon-feeding the user, but more just giving them the info they need to be able to play the game. In this example it would be controls and informing the user about the fullscreen bug under a known bugs section, as the interaction might be pretty common. (only just saw it on the download screen, it's lacking visibility here)