Just found this promo, 2 games for free for Nvidia cards.

The Blind Eternities forum

Posted on Feb. 2, 2016, 3:57 p.m. by Ixidron

So, if you have an ASUS MANUFACTURED Nvidia graphic card that's either 980, 980ti or 970 you can get:

RISE OF THE TOMB RAIDER and ASASSINS SYNDICATE or RAINBOW SIX SIEGE (+season pass)

First you must set your region to AUSTRALIA, that's important.

Get Tomb Raider code: http://www.asus.com/event/VGA/Rise-of-the-Tomb-Raider/index.aspx?l=1

Then go to: https://redeem.geforce.com/

Get R6: siege / AC: Syndicate code, remember ONLY ONE GAME: http://www.asus.com/event/VGA/Bullets-or-Blades/

Then go to: https://redeem.geforce.com/?campaignID=BULLETSORBLADES

Season pass: http://www.asus.com/event/VGA/Extra-Bullets-or-Blades/