Adventure
The zombie clan objective asks you to observe a group and its route, not only the single figure under your control.
Identify your role in the current scene
City Apocalypse 3D Of Zombie Crowd uses both survival and crowd building language, then describes turning people into zombies to grow a clan. Read the actual introduction to establish the current objective. The controls say to use the mouse for your zombie, but the scene may show a larger group whose position matters. Locate that group and understand its relationship to the figure you are directly controlling before moving toward another encounter.
Read lanes as group spaces
The description emphasizes swarms flowing along lanes and around corners. In the actual city, look at how much visible room the crowd has along the route you intend to use. A gap that appears open beside the leading character may look different when you consider the rest of the group. This is a spatial observation exercise, not a claim that every follower has a particular collision rule or automatically takes the same path.
Recount the situation after contact
After the group meets another character or crowd, inspect what changed: the visible group, the nearby threats, and the direction still available. Let the game's feedback establish the result rather than assuming every encounter adds a fixed number of members. A clear account of where the clan moved and what happened there gives the fictional crowd battle a concrete planning question beyond simply directing the largest looking swarm toward the nearest activity.