3. Activate and download the game via Steam
As mentioned earlier in this article, I have tested the free demo of this game : Shadow of the Tomb Raider Trial.
But, as stated in the game, the progress will be preserved if I buy the full game. What is now done. All I have to do is activate the CD key provided by Instant-Gaming.
In our case, I launch Steam, I go into Library, and I click on : Add a game -> Activate a product on Steam.
The "Product activation" wizard is displayed.
Paste the CD key provided by Instant-Gaming.
The activation is complete. Click on "Print receipt" to keep official proof of your purchase.
Note : this proves that Instant-Gaming is trusted and that you can safely enjoy the low prices of this site ;-)
As you can see, this key corresponds to the edition purchased from Instant-Gaming and it'is actually a CD key type : Key-Only ROW.
All you have to do is download and install the game.
As expected, the full game replaces the Trial version in Steam.
Once the game is installed, it only remains to launch it.
Since I have already played the demo and I choose the Croft edition (which offers some advantages), I see several "Thank you for your purchase" messages.
And I receive some bonuses.
As expected, I find the progress made in demo mode and I can continue to play.
Conclusion : Instant-Gaming is trusted, they offer very interesting prices and especially low, and I still enjoy the reliability of official download platforms despite the fact that I bought the cheapest key from a third party.
For my part, I will buy my games only at Instant-Gaming (which will most likely be the site that will offer me the best price).
After, nothing prevents you to register on GameTame (formerly SteamPowers) which will allow you to win gift cards for Steam.
This will allow you to buy for free or cheaper games or DLC (which may not be available on Instant-Gaming).