I got MQ82B-57G9T-A2CRX. Thanks.

http://psteamproxy.yuanyoumao.com/app/368750/

Go to this link : http://failmid.com/game/nebula-online-100-discount/

Details:

• Steam game
  
• 100% free
  
• Requires Email
  
• Has collecting cards
  
• ATTENTION: Website might be under heavy load!

Have fun!

Go to this link : https://www.origin.com/en-de/store/free-games/on-the-house

Details:

• 100% free
  
• Time limited offer
  
• Requires Origin Account
  
• No Steam key

Have fun!

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Go to this link : https://www.facebook.com/Ultrashockgaming/app/342569212574234/

Details:

• 100% free
  
• Steam
  
• Requires Facebook AND Twitter
  
• Complete 8/9 tasks
  
• Has collecting cards

http://psteamproxy.yuanyoumao.com/app/243000/

Square Enix are giving away free Steam keys for the game Omikron: The Nomad Soul in memory of David Bowie.

Quoted from Square Enix:

Ursprünglich geschrieben von Square Enix:

In memoriam to David Bowie's legacy, we are giving away free digital download copies of his videogame, Omikron: The Nomad Soul.

Enter coupon code "omikron" at checkout to receive your free copy. Let's all replay this game and celebrate his music!

Offer expires: 01/22/2016
While supplies last.

Square Enix - North America [store.na.square-enix.com]

Square Enix - Europe [store.eu.square-enix.com]

Details:

• 100% free
  
• Steam
  
• Account required (Square Enix, alternatively Steam or Facebook)
  
• No coupon code required for EU.
  
• Coupon code "omikron"

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