Free Steam Game: Desert Thunder

1. Go here
2. Enter a valid e-mail
3. Click 'Redeem'
4. Verify the captcha
5. Click 'Submit' & you will receive the key in your e-mail inbox

Bonus:

GOG: Big Fall Games and Bundles Sale Finale

Fallout 4 Deal - 15% off coupon: 15PERC-WTHGMG-NVMBER

Fallout 4 Season Pass Deal - 15% off coupon: 15PERC-WTHGMG-NVMBER

Rocket League Deals - 15% off coupon: 15PERC-WTHGMG-NVMBER

G2A: No Deal Left Wasted Games Sale - 3% off voucher: KINGS

Star Wars Battlefront Deal - 16% off

Assassin's Creed Syndicate - 28% off

Rainbow Six Siege - 28% off