1、解压缩
2、安装Update文件夹下的升级补丁到游戏目录
3、复制CODEX文件夹下的未加密补丁到游戏目录覆盖
4、运行游戏

更新说明：

Update 1:

-using melee weapon now damages enemies instead of stunning them,
- you can't leave the police station without acquiring the gun anymore,
- workaround: added the gun pickup before the gate in the forest for those of you who missed the gun at the police   station - that means you don't need to go back anymore, simply move forward and you should find the gun inon a stone   in the forest in front of the gate,
- removed firing spread/offset when stamina level is low,
- the first enemy type has now less health points,
- various sound fixes,
- various model improvements,
- various texture fixes,
- fixes for some moments when levels were not being loaded correctly.

By CODEX