[game] Zombie gameplay

I just came accross this flash game 'The Last Stand':
http://armorgames.com/play/269/the-last-stand

I like the gameplay. Everytime I thought about doing a zombie game it was something along these lines: Build barricades at day, fight for your life at night. The game asks to choose how to allocate day time (repair, or search for weapons / survivors), rather than having you wander around and search for items. It is a neat idea.