How to get a CD Key for free
1 - First step is to register as the member
2 - Go to the "Earn Coins" page
3 - Choose an offer and complete it with valid information
4 - After completion your coins will be automatically awarded to your account and you can get the Deadly Rescue CD Key
About This Game
Greetings, agent. We have a special mission for you. Its a rescue mission. We know you are experienced in ordinary rescue missions, but this one is very different. You need to rescue your targets from the UNDEAD. The city is now overwhelmed by zombies, but luckily we found a signal of livings in the Wisdom Prison. The signal is weak, and we dont know how many survivors are there, or how much longer they can survive. You must hurry, before its too late. And also be careful, we have lost many good soldiers fighting those zombies. Good luck.
Description:
Deadly Rescue is an immersive VR first person shooter which player plays as a special agent on a mission of rescuing survivors from a prison overwhelmed by zombies. Player needs to find survivors before time runs out. Clue of survivors locations is limited, player will have to search the area for survivors, though the crowd of zombies of cause. Supplies are also limited, player needs to look for ammo and use every bullet wisely.
Features:
-A variety of weapons, pistols, rifles, shotguns and more, kill zombies the way you like.
-Interacting with objects around you, use them to protect you or eliminate enemies.
-15 different areas for players to explore, different enemies and challenges awaits.
-Player can roam freely in the prison, but beware, youll need to make your choice of where to go, and you may run into something horrible.
-Realistic immersive gameplay only for HTC Vive.
Upcoming:
-Survive mode.
-Multiplayer co-op mode.

Source: Deadly Rescue - SteamPowered.com
Instructions to activate steam keys
1 - Download and install the Steam client on your PC.
2 - Open the Steam client, login and locate the Games tab on the top menu. Click this and then select “Activate a Product on Steam…”
3 - Enter your product key that appears on the email and follow the instructions to activate it.
4 - Your game is now viewable in the “Library” tab and is available to download/install when you’re ready