Half-Life: Opposing Force Steam CD Key

Register, earn coins and get Half-Life: Opposing Force steam key free. After you get enough coins, you can redeem them for an activation code and download Half-Life: Opposing Force on Steam.

List of digital keys recently obtained by our users, all keys are from G2A.com:

No	Platform	Provider	Activation key	Game
1	Steam		U5NO7-A8AH1-H3MK6	Half-Life: Opposing Force
2	Steam		R3XN3-Y9ZC9-R7KG2	Half-Life: Opposing Force
3	Steam		B8PQ8-R5IK5-C3RZ4	Half-Life: Opposing Force
4	Steam		D1RI4-S9VL5-Z2CL3	Half-Life: Opposing Force
5	Steam		B9GP7-Z4CZ8-U7NF3	Half-Life: Opposing Force

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 Half-Life: Opposing Force CD Key

Return to the Black Mesa Research Facility as one of the military specialists assigned to eliminate Gordon Freeman. Experience an entirely new episode of single player action. Meet fierce alien opponents, and experiment with new weaponry. Named Game of the Year by the Academy of Interactive Arts and Sciences.

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 activation 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