Gambit, as Aardvajk stated, ignore Krios as he is just a troll from the dark corners of the internet. His sole purpose was to start an argument or make someone doubt themselves.

Now as for the ideas, parts make me think of several games right off. Final Fantasy, Elder Scrolls, Suikoden, just to name three. There is nothing wrong with using old tropes, after all a lot of games use the damsel in distress trope and many other tropes. Manveer Heir, of BioWare, even says using the same old tropes is lazy, but I disagree to an extent as I think if you know the tropes well then you can think of ways to make them fresh, flip roles, or find fun ways to use them. After all, look at Mario or Zelda, several games in both series and use basically the same tropes, but everyone loves them. I'd say focus on making the story interesting if you plan to use numerous tropes.

Seems like a good starting point and I think your next step should be to really give your characters some depth.
One criticism I have at the moment is that possibly your story feels a bit male heavy. The females in your story, while they do have important roles to move the plot forward, do all feel like supporting cast. Perhaps it could be an older sister looking after her little brother? Something like this would play against traditional fantasy tropes and could make the game more engaging.