This looks incredible. The shading kind of reminds me of borderlands, which is really cool. Not only that, but the game also feels amazing. The flying is incredibly well made.
The only criticism I have is that it would be cool to have a small tutorial, but I get that for a game jam game, that's a lot to ask for.
Besides that, it's an awesome game. I'm really interested in seeing where you take it from here.
Good job, guys!