doors. storage chest, and trading with players and penaltys

It will be nice to have doors added to keep zombies out and an option to give and receive coins with other players or crates or chest that we can store coins in like a bank. Also could store food and when you die we should lose money as well as wave progression. So then players would wanna have a stash of coins. Just in case they die. Also the doors and chest if added should be in the shop .

These are things I think would fit in a separate survival mode