Creation by fans of the game.

Heh. I didn't explain it correctly. I deliberately didn't read the bold text. Let's start:

flying into the tower

Explain what the tower is. I assume it's an observation post, possibly a guard post in the port on the shore, but it's better to clarify.

but there is also good news.

You missed a word or made a typo.

weapon proficiency only manifests on horseback

What computer game are we talking about again? Maybe it's better to say that they are used to fighting on horseback and are not as effective without them?

The plot is worse, but the logic is better than in the second one.