Game disappeared from Steam.

After the issue with servers yesterday, my game disappeared from my Steam library. When I look it up on the shop and click on "play now" it says "you are about to install the game". So that means that my game has been un installed for some reason. Will my progress be maintained if I reinstall it?

If you've been playing on Steam, then yes, the progress is saved into your Steam account. Reinstall the game and you'll be able to continue with your progress.

Eu tive que desinstalar o jogo por motivo de perda de HD, ai voltei ao jogo e meu progresso havia sido perdido!

E agora quado entro na minha conta STEAM esta com outro usuario, mas o problema é que quando meu amigo entra na conta dele o mesmo acontece.