I managed to play it and finish it! For a first jam game congrats for having something playable, people don't submit a game in the end of the run and you did it! I like the idea, but probably you had a scope that was too big for the small amount of time. That happens a lot! Did you make the music yourself? It was nice to have background music instead of having nothing, even though the music wasn't great (my music also isn't great). You can't do everything perfectly the first time (or second) ;) 

 A sound when you pick up the wrench would've been a nice touch. I don't want to talk you down, You did a great job for a first jam (solo I assume?) and there is a lot of room to grow and you'll get better over time by joining more game jams and practicing yourself! 

Congrats on entering your first jam!  Keep at it.  I would suggest putting in effort with a good submission image, and extra gif/images.  If you want people to play your game I think a good quick glance first impression is very important~