Re: Re:Ice Breaker released free on steam!!!
“Add a non-steam game” means add a shortcut to a non-steam game. Retail versions are activated at Steam. You probably mean “Activate a product at Steam”.
Anyway, have you rightclicked onto the game in the list and then chosen properties > DLC? A single item doesn’t need much time to download so I didn’t even see it updating and it’s probably already in your game.