I loved this inventory system! The game makes you run across the map for resources and you still need to escape from the aliens! it's quite fun, but I thought you put a lot of inputs and I was a little confused, especially at the beginning. And when I open the credits the game closes: c
Anyway, for a game made for a jam it's pretty cool. One feedback I can give you is to try to reduce the number of inputs and make a more visual explanation of the game.
Good job!