I've actually been ok when alone. However, as soon as another player comes in my vicinity, my frames drop pretty low. It'll freeze sometimes and runs around 10 frames per seconds. This made it pretty much impossible to play with friends on my rig (Nvidia Gtx765M with Intel i7 4700-MQ and Samsung 250gb SSD). I usually get around 25-40 frames in game, on lowest settings.

Interesting thing is, if I'm looking at the player list I am totally fine FPS wise..... Clearly something is coded badly. I'm not sure I want to play until the next patch since this will get me killed VERY quickly.

Edit: Now that I think of it, during Rocket's stream he was experiencing lag. He said that their is someone in the group who is making them lag. I think it may be an item issue.

I concur with emenius's note. I just tried to empty 3 boxes of ammo in various places and all of the ammo disappeared. Luckily it was just ammo I was trying to pick up, but I would have liked to have received that ammo.

Go stare at the real sun and tell me it doesn't freaking blind you..... However, that sun glass idea would be pretty cool.

I find this hilarious. I like to scare the shit out of my friends by hitting a wall with my axe, then telling them to take cover. But, yeah that shouldn't be in the game.

I haven't had any issues as of late. Ran from NE airstrip to Staroye. Not a single drink or can on my way down. Never was thirsty, etc. Only ate in Staroye to maintain healthy status.

Yeah, I'm having the same issue. Zombies run right through walls as if they never existed. Also, if you are above them in a 2nd+ story, they can still hit you from the ground floor. I've gotten a number of broken legs due to this and I always loot with my axe out.
It's supposed to be a zombie game. Fix the zombies please.....