Should be more groups of zombies in different areas. As it is now, if I raise the amount of zombies spawning the amount of zombies are higher, but they should spawn more in groups depending on area. Not a lot of zombies in the woods for instance while large groups at the grodery store and so on.
They also need to have a better reaction time. They feel so slow right now. Not when they react to you but slow at actually starting to react.
If zombies spawn in larger groups at places with a lot of loot it would after a while become a dangerous loot raid for the players to leave their relatively safe base to go into town and loot. Would make it feel a lot more like a zombie movie I guess.
Edit:
Feels wrong filling up the suggestions thread with stuff each time something pops up in my head so I'll just continue filling out ideas here. :p
Rotating objects.
Since you can choose to place most things physically in the world I'd love the ability to rotate atleast some objects on both more than one axle. Mostly because I would love to be able to place books standing up to actually use the book cases properly.
There is a bunch of books to learn new things, many needs higher level than I have atm and others are dublicates which friends might need later when I play with them. Being able to basically have a small library with books placed in book cases would be nice. (and also some way of writing my own books that could be read ingame, and or a way to add books to be spawned in the world (maybe some txt files in a folder on the server could be used for these with a title row and then the text in the book to be used.
Edit 2:
Physics (bodily ones).
You can make your character thin, fat and whatever is inbetween. Would be great if the body actually change depending on how much you move and what you eat. Like giving you worse agility/endurance or more sleepy if you eat the same crappy food.
Should also be something that could be an option to turn on or off so people can choose if they want that extra work. 🙂