Weird Steam problem!


Simracer since 99 / 3D Engineer & Game Developer
Till some 18 hours ago it was all perfect...

I come home now try to play AC and it says - login on steam... weird already i was logged in

I log in the steam okay, going in library i see - AC not installed

I didn't anything ... nor with the steam or the game or with my PC
AC is still on my harddisk but steam is not making a connection with the files, it seems.

Does anyone had this problem, ever?