I know why the developer anwers so many comments it is because hes addicted to this game himself so eachtime hes comming to check if he can get some more donut shop he scrolls down and anwers some comments !
to host a server you need to portfoward the port you select if you dont no one can join you
its done in the router settings.i suggest not touching it if you have no clue what you are doing there.
i like the game but i found some problems ....
servers glitch the F!@# out when full.
teamkilling with explosives or beartraps is realy annoying aswell
the zombies make no sound so they sneak up on you like ninjas.