Here is how my first few lives went:
My first life I walked into a town, and was promptly zombified in the back of a shop when it turned out that not only can these zombies run indoors, they are also a little faster than you and miss a LOT less than in DayZ... They also hit a LOT harder.
My second life lasted a little longer. I even got a rifle. I ended up being flanked by an un noticed zombie whilst hunting a deer, and was hit from behind for my last 10% health.
My third life seen me accrue a good inventory of weapons, start using the crafting system and the built in XP sytem to upgrade my attributes to better survive and combat the undead hordes. I then went ahead and assaulted the local military base, mowing down zombies left and right with a stolen car, gearing up, grabbing a Hum-Vee and spiriting away into the sunset.
I have thus far only played single player. It is a tough little game, but is very thrilling... and gore filled! Let's just say a shotgunned zombie will paint the internal walls of a building liberally.
The game includes a few systems that work well, including crafting (Hang onto that last bullet because you will want to refill the clip using the crafting system!), and experience points. Feel like going on a Katana wielding zombie Murder spree? Go for it - you will get XP to spend on swinging that bad boy better! Whilst lives tend to be somewhat atomicised - when you die you lose everything, you still regain some of your skills that you have invested, and your corpse will litter the landscape somewhere to recover some of your equipment.
My suggestion: Get your asses on Steam and get this game downloaded and try it out. It is Free to Play (At least at the moment) -- I will be commencing a short series let's play shortly to see how well I do in this game before I look to hitting up a server with other players.