一款恐怖生存类游戏，玩家扮演的角色是一个头发花白的海军陆战队员，执行一项有关秘密实验室的秘密任务，这种秘密实验室一般都干不出什么好事，除了病毒泄露。

- Free roaming, open based gameplay - You decide where to go and what to do.
- Survive on a knife’s edge - loot weapons, ammo and resources to stay alive
- Dynamic missions that change depending on your choices.
- Explore the town and find samples to create the vaccine.
- Split second decisions are the difference between life and death -- Do I run or do i fight?
- Close range battles with infected enemies splatter blood and gore everywhere

版本 1.12 中的新功能

Fixed a.i. compatibility bug with ios 5.1