You have a README which is great (and it's really cool. Love the screenshots and emojis and text), and you'll also need a License file (these are two main criteria for open source category).
Love that the game goes full window by default. Love this. Super addictive, the graphics are fun (love all the tech toys that are falling down), the voice over for "Life restored" is gold! Music is great, and fits nicely, as do the sound effects. I like the touch you added of "rusting" so you had to move around. Great fun concept and well done.