https://steamcommunity.com/app/412020/discussions/0/1771511442683077969/
Metro Exodus 3rd party site keys
We have been made aware of illegal stolen keys being sold by an unofficial
key reseller.
These keys have been obtained illegally from the factory where physical key
printing had taken place prior to the announcement of exclusivity with Epic
Games, due to the criminal nature of these keys, all unlicensed keys have
been deactivated and activation / download of Metro Exodus without the
executable file is no longer possible. In addition, the software will be
removed from the Steam library of any players using an unauthorised code. The
keys being sold on this platform are stolen goods, and are therefore illegal.
If you have been affected we strongly recommend you contact the seller who
sold you the unlicensed key and demand a refund.
The only supported key sellers for Metro Exodus were Humblebundle and the
Razer store.
Metro Exodus will return to Steam after 14 February 2020.
深銀表示Steam上的序號全部都是從實體版工廠中非法流出的，
流出時間點是在宣佈Epic獨佔之前。
這一批Steam序號全都會失效，已經使用的序號會從遊戲庫中移除，
如果有玩家因此權益受損，請去聯繫序號賣家尋求退款。
深銀認可的地鐵流亡的第三方序號商店只有HB與雷蛇(都是Epic序號)。
補充下，底下有人聯繫賣家之後拿到了一份Epic的序號....XD

非法流出被ban很合理便宜的序號本來就別亂買

個資流進來 騰訊發大財

笑爆

喔對了，這批序號可不便宜，獨佔消息出來後被炒到70歐

不便宜幹嘛還去買？steam平台的吸引力有這麼大到漲價賣都有人買喔？

+1無價

與其說steam吸引人 更像是epic故人怨吧

因為steam版原本只有預購才有吧

有阿，難道你要裝EPIC？

難道你要裝epic?