Description: Help Zack to find what's going on in the biomedicine lab where he works. Move with the arrow keys. Press Q to open your inventory. Press the space bar to open the doors. Use the mouse to choose objects from the inventory. Make click to attack. Press R to reload your weapon. Press the Caps lock to turn the light on.

Instructions: Q - To choose weapon. R - to reload. W,A,S,D/Arrow keys - To move/jump. Mouse key - To aim and shoot. Space bar - To open doors/climb out..

Category: Zombie Games

The Serum Game

Play The Serum game online for free at You don’t need to download and install the games you want to play, just install Adobe Flash Player in your browser and enjoy the best online games for children and adults. Use IE, Opera or Firefox browsers to access the games. We offer only family-friendly online games!

MOST PLAYED Zombie Games

NEWEST Zombie Games