https://www.humblebundle.com/store/ashes-of-the-singularity-escalation-free-game
申请成功后在这里查看兑换码
https://www.humblebundle.com/home/keys
然后去 steam 上面兑换记录
原价 90 的《奇点灰烬》兑换码限时免费领
限时专享福利
限时优惠
限时免费
https://www.humblebundle.com/store/ashes-of-the-singularity-escalation-free-game
申请成功后在这里查看兑换码
https://www.humblebundle.com/home/keys
然后去 steam 上面兑换记录