http://store.steampowered.com/app/9480/
Just click on the Install button.

Grab Steam game for Free: RADical ROACH Deluxe Edition

Here you can grab your free Steam Key for RADical ROACH Deluxe Edition:
https://www.indiegala.com/store

Steps:

Visit this Website[www.indiegala.com]
Fill in your E-mail address
Click on “Redeem”
Join Indiegala Steam Group
Verify Captcha

An email with the link of your profile will be sent to your address! You should receive an email from them within 10 minutes. Please be patient, it may require up to 30 minutes due to high traffic load.

About this game: RADical ROACH is a fast paced shoot em’ up, set minutes after nuclear hell falls from the sky engulfing all but a few tough little bugs. Play as the super little radiated roach with new found powers, get to safety before the army of fleas gets you.

(+ Steam Trading Cards) - http://www.epicbundle.com/article/steam-key-for-free-the-culling-of-the-cows

Grab a FREE Steam Key for a side-scrolling shooter / tower defence game with 63% positive reviews on Steam - playable on Windows. Additionally this game includes Steam Trading Cards! Nice!

IHW9A-I80YX-XL2WF
7TE9R-FPMRJ-NGTPY-
GWR88-DYDDY-YRB9Q
X6MJ0-2AITE-4G5XQ
5BWH2-WP97H-0MW5X
0Z8N0-LLG65-I84CG
XK89N-3BL3D-TFXV8
X7ADK-2FFJK-TN8II
L293Q-CJL9D-MMCNM
NXGRT-I537H-PE5CV
9PZ0C-Z7TAG-PKNFC
JK0P3-6MV6N-AP4Q2
B4C5W-RFT20-MVT76
P98TM-GRJ48-QZZ5Y
2CVK0-X02Q7-M7YEA

Win 1 of 2000 copies of Ralin: Dwarf Wars
http://whosgamingnow.net/giveaway/ralin

Win 1 of 500 copies of Eternal Step
http://whosgamingnow.net/giveaway/eternalstep

Win 1 of 2000 copies of Agent Awesome
http://whosgamingnow.net/giveaway/aa

Win 1 of 500 copies of DRAGON: A Game About a Dragon
http://whosgamingnow.net/giveaway/dragon

Win 1 of 2000 copies of GunWorld
http://whosgamingnow.net/giveaway/gunworld