The idea you had is definitely rejuvenation but if I had a nickel for every idea...well you know. It's really cool that it is a procedurally generated world and the mechanics work, just need music/sfx/ etc... Games are hard, but you did submit so that's better than most! You should definitely work on it some more and at the very least get it to a level which you are happy with, even if its not for the jam.