Some giveaways for new steamgifts members and everyone else. Steamkey will show up on your "Giveaways Won" section.
(trophy symbol in the top right)
Please mark as received after you activated the game successfully and enjoy ;)

Bonuskey (Not sure if it still works; Would be nice if you leave a comment if key worked or not so everyone else knows it's gone)

Sanctum: 8AWAA-I2J63-W39R6
Violator DLC: QFLL4-6DTLF-4XQPR
Killing Floor DLC: QH5JV-QDW6L-CERD3
Penetrator DLC: PGGNX-MXZRK-0YBEZ