- Warframe Keeps Removing Itself From Steam Library

[-Vane-]

So, i was like opening up Steam, trying out some games while i remembered, hey, I have Warframe! And so i wanted to play. However, the launcher was not in the library. Also, all of the files were in place, so my guess was i've got a virus. I scanned computer serveral times and nothing came up. 

Help? I don't want to wait 4 hours to download the game again.

 

EDIT: Could cache verify do something?

Edited October 12, 2014 by NyancraftG