Quoted from OLDPINGUY:

In a strange answer...Older Bally Williams are very linear, and therefore while great fun, the objectives are repetitive and predictable.
In newer Sterns like X-men, you can choose the path...via villains or hero's, randomizing the "linear" ness.
In TWD, it is organized chaos. The code carries and compliments the theme, in the sense of a "frenzy" What to do?
Zombies are attacking!, I know, Tunnel, no wait, cross bow, oh shit blood bath!
Your game play is as much controlled by well placed shots, rewarded with a point score that rattles the bones, as much as non planned shots creating a zombie chaos, and then objectives come into play...
The code today rewards everyone with an experience regardless of good play or bad play....the code and game are just that good.
Almost a year now, and every time I play, I am immersed, challenged, and even threatened....(lights, sounds).
One rare, special game here .....