Nice work! If possible I would greatly appreciate a linux build, and I wouldn’t mind testing it for you.
I think this game is mechanically very satisfying. It reminds me a little bit of Overlord, which makes me kind of wish there was a Beacon spell that could force allies to target a specific enemy in the radius. I found the spells to be fairly well balanced, and once I realized even my fireballs weren’t exactly effective but saw the effectiveness of the revived wolves the whole game sort of clicked for me.
The controls are a little laggy because of webGL, but otherwise I think the interface is very intuitve. I didn’t have any issue targeting enemies, though mechanically I think the way enemies retreat to their original space when you escape their boundaries is a little too exploitable. It takes a while for the game to really up the danger level, which is good for learning but could leave a slow first impression.
The game mostly has a very clean aesthetic, but I think the terrain comes across as less stylized. In the future I think you would benefit a lot from having more cartoonish textures on the ground and using harder brushes to mark the path, in order to fit your low poly style. A polygonal normal mesh might also help push that low-poly aesthetic. Combined with the map design I did enjoy the slow shift from forests and outer walls to castle gates and fortresses, which felt very natural.
The main issue I had with the game other than WebGL performance is in the audio. Most of the sounds are good on their own and a few missing particles or sounds are understandable with the ten days, but in more chaotic situations the audio can start overlapping and distorting. I would recommend getting an audio mixer set up to resolve this.
Overall, good work!