TIPS
Don't get too close to them or they will attack you
If you shoot or get into a car, the zombies will hear you and chase you
Find things on the ground or destroy houses
For every 100 zombies killed, you can unlock an upgrade or a new building
If your car is stuck, don't forget to move (Shift)
Make sure you have enough gas to drive the car
If you don't shoot for a certain amount of time, the zombies will stop chasing you
COMMANDS
You can change the commands on the Settings button
Movement: W, A, S, D / Z, Q, S, D or arrow keys
Shoot: left click
Place building: Right click / B
Interaction: SPACE
Running / drifting in a car: Shift
Change weapon: Number / click on it / Mouse wheel
Change building: click on it (bottom right)
You can team up with your friends on the "Team with your friends" button.