http://store.steampowered.com/app/268870/Satellite_Reign/]

Goto HumbleBundle Store Page: Satelite Reign[www.humblebundle.com]
add it to your shopping cart
create an (free) account or login to redeem your code

http://store.steampowered.com/app/251530/

https://epicdeal.gamesrepublic.com/game/strategy,anomaly-korea,143.html

Steps needed?

Create new / or login with gr-account and add the game to your profile

Make War Not Love 3 - Prize 1

Includes:

Golden Axe
Jet Set Radio
SEGA Classics
Hell Yeah! Wrath Of The Dead Rabbit
Hell Yeah! Pimp My Rabits Pack
Hell Yeah! Virtual Rabbit Missions

http://store.steampowered.com/sale/makewarnotlove3

Steps needed?

Just click on install next to the bundle tilte

New free Sega games will be presented within the next days

Oddworld: Abe's Oddysee
Free on steam's shop site for today only. Once installed it´s yours forever.
Ends September 24th at 10am Pacific.

http://store.steampowered.com/app/15700

Click install on the above image or visit the shop site and do it from there

Free steam-key:

woo box.com /2xnvvx

http://store.steampowered.com/app/218740/]Steam-Store-Page

Steps needed?

Steam thinks the link isn´t trustworthy... Couldn´t see any problems with it. So if you can handle this copy/paste the link to your browser and remove spaces
Enter your email @the woobox website