Chapter 3 of Zombie Survival is currently being written.
You are leading a group of survivors in a theme park. Naturally there are problems and zombies a plenty and you have to pick your way through it all. It will be in the same style as the two earlier chapters and will be roughly the same length as them too.
The third chapter will be included in the current app as an update. It will be completely free.
Follow me on twitter or subscribe to this blog if you want to know when the new chapter comes out. It should be in the next week on Google Play and probably two weeks on Amazon.com (because they have to check apps before they publish them).