It would have been more interesting if you received the codes one by one, by reaching different endings, so each time you went back, you had more options for how you could solve the puzzles.
Looks good dude, DEFINITELY needs a better camera angle. You should be able to hit people with your wrench, and there should be something or someone chasing you or trying to kill you. That or you should be able to use the wrench on something, either a piece of machinery or something. I dunno. There should be a point to the wrench! Also, treasure is cool, as is your idea to have food and water. Just don't have them run out too quickly, as that gets old really fast.
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