How to Redeem A Steam Game Key
On Desktop:
There are two ways to redeem.
1) Install the official Steam desktop application at https://store.steampowered.com/about/
After installing, sign into your account. Then at the top, click Games -> Activate a Product on Steam


On the pop-up screen, enter the game key, click ‘Confirm’ and the game will appear in your library to download.


2) Visit https://store.steampowered.com/account/registerkey and log into your Steam account. The first screen will be a place to enter a key.


On mobile devices:
Unfortunately, there is currently no way to redeem a Steam game key with the Steam mobile app. The only way to do it is to open a browser window on your device and visit https://store.steampowered.com/account/registerkey
You will then log into your Steam account just like on desktop and redeem the key in that portal.
How to Review a Steam Game
You can review any game in your Steam library from the library page or the store listing.
In Steam Library:
Pull up the game in your Steam library. On the right-hand side about midway down is a panel labeled ‘My Review.’ There you can click to write a review.


On the Steam store page:
Just below the info section is a window for you to type your review.

