Door defense - bloody action arcade. Primary purpose is to relax the nerves and a slew of time :)
In Door defense you have to play the role of a guard door in the bunker with radioactive materials.
A guard from the crowds have nasty zombies that crazy idea to get into the bunker and eating therein isotopes become a large and strong zombie mutants ...
Your main task is not to miss a single door zombies, well, if you really miss it be ready that soon mutated zombies get out of the bunker taking with them one of the valuable reagents.
In your arsenal no extra weapons. You, as a guard of highly qualified, armed with a powerful six-barreled gun and at any moment ready to be put to its intended use.
Well, you ready? Good luck!

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