Boxhead Christmas Nightmare is a wonderful zombie apocalypse game. Play it on this page. The game is built with Flash technology to run smoothly in all modern browsers. It has received 54,989 plays and has been rated 9.0 out of 10 by 692 people. Did you like playing Boxhead Christmas Nightmare? Then also play our other zombie apocalypse games like Block Pixel Gun Apocalypse 3 and Infectonator Survivors Christmas.