Initially I wrote this code to generate a random dungeon but hey! killing zombies is always fun! so here is: Dungeons and Zombies!
Developed it in one week while practicing with XNA tools, everything is coded in C#. The dungeon is generated randomly, and the zombies are using an A-star algorithm to find the player. The characters pixelart was just painted and animated in Photoshop CS.
You can download it here.