http://steamproxy.net/steamstore/app/218620/PAYDAY_2/
(只提供500万份,要的小伙伴速度了)

(Rising Storm Game of the Year Edition)
https://www.humblebundle.com/store/rising-storm-game-of-the-year-edition?linkID=&mcID=102:5925fa4b51ab4ec261a19857:ot:57d23820b42ee742d1c67d02:1&utm_source=Humble+Bundle+Newsletter&utm_medium=email&utm_campaign=2017_05_25_SpringSale_store_20170525&utm_content=Banner

(共4款游戏: 'REED', 'Lost Moon', 'Nuclear Shot', 'The Last Hope')

进入网站:
https://keychampions.net/index.php
按照提示完成所需的条件,即可获得cdk;
然后在steam页面左下角按
'添加游戏' => '在steam上激活产品...'
最后输入所获得的cdk就大功告成啦
先到先得哦,有需要的小伙伴们考验你们手速的时候到啦!