Thank you very much! Hopefully the upcoming update will add some much needed variety. It won't be long until I can get to work on new weapons, enemies and maps. And the 'ping!' was inspired by those old WWII rifles.
And about the burgers - it doesn't say explicitly anywhere that the burgers are made from real meat. It's a dystopian future so you can use your imagination. Maybe it's lab grown or maybe all food is reconstituted protein made too look like familiar 20th century foods? Maybe in this future eating real meat was outlawed because it wasn't economically sustainable?
The upcoming update (and most of the ones after) will add little world building details that show you what kind of future this is. The story will never be explicitly explained, though, only hinted at though objects in the world, so you can imagine the world outside the compound walls to be whatever you like (and it saves on development time! :P)
Thanks for taking the time to leave a comment. Have a good one!