• There are markers in the remnants of the world. They represent missions (delivery/zombie cleanup), as well as other interactions (leaving/entering car, entering garage, accessing shop etc.) Simply enter them (inside car) and/or press interaction key (outside car) to start mission or do something else. You'll see further instructions in-game.

Controls

• WASD or arrow keys to move
• Left mouse button to attack/shoot (outside car)
• Drag mouse while holding LMB to rotate camera (inside car), or without holding (outside car)
• E to interact (while being inside marker)
• U to use item in middle slot (outside car)
• I to open/close invertory (outside car)
• ESC to pause/unpause game