The game revolves around a "Higher/Lower" solitaire style where you chain cards together to clear the board.
While "free download" often refers to limited trials, you can find the full game or demos at these official retailers: Zombie Solitaire 2 Chapter 2 Free Download
Offers a trial version of Zombie Solitaire 2 before purchasing. The game revolves around a "Higher/Lower" solitaire style