Brevity might be the soul of wit and I’m familiar with Eric Ugland’s similarly brief Louis L’Amour-esque penny-dreadful LitRPGs, but the promise of this narrative vs. what was written makes this just feel short.
To be specific, I would have loved to have seen the townsfolk’s abilities and the defender’s strategies grow and evolve over an extended siege rather than the “siege” simply being one battle with one side being entrenched. Also, elves were clearly introduced as another possible threat or possible allies and nothing came of that narrative thread.
Having said that, I think if the author chose to rewrite this series with the main character becoming a twelve year-old, it could be sold as a children’s series as the themes are quite wholesome and the language was PG. Some of the battles might need to have a bit of gore toned down and the main character’s peers would also need to be aged down, but I think this could work as a children’s LitRPG with appropriate edits. Even then, it should also expand on the two narratives I mentioned because books can be short without feeling short when they feel complete.
While this review is quite critical, I did enjoy the narrative and the writing of the author. I hope they keep it up and that they get better beta readers (who aren’t friends, family, or fandom) as this feedback seems obvious to me and I feel like this author could be exceptional if they were just given (and took) a few notes before they published.