Posted June 14, 2016
Only during those 2 days the game will be free on Steam. When games are offered for free there for a limited time, in their store pages the usual button "Add to Cart" is changed to "Install Game" (exactly as if you own it), but for these free games you need to make sure to click on that button to add those games permanently innto your Steam account (yes, you will need one). Once clicked that button, a new window should appear asking where to install the game. Is not necessary to download it during that moment because the game has been already been added to your account and you can close that window. So if you want Limbo on Steam, during those days (June 21 or 22) you'll have to:
Azrael360: Also for PC users, this great game will be free on the next June 21 & 22 ([url=http://www.gamespot.com/articles/limbo-devs-next-game-gets-xbox-one-and-pc-release-/1100-6440696/]Source).
MadeinChina: it will be free for some time or we have to go to the site and get there key there????
1. Login into your Steam account.
2. Visit its store page: http://store.steampowered.com/app/48000/
3. Click in the green "Install Game" button to add it your account.
4. Download the game to play it right away or cancel to download it later.