View Full Version : Thief cannot start when Steam is not running.

4th Mar 2014, 16:03
I was able to launch the game once. Now when I try and launch it (from within my Steam Library, no less) I am greeted by a dialog box proclaiming "Thief cannot start when Steam is not running."

Steam is running, I am not offline, I have validated all local content and now I am perplexed.
I have uninstalled, re-installed, elevated permissions, verified the game cache and searched for any similar issues but nothing has worked.

Any suggestions?

Windows 8.1 (64-bit), i7-4770K, GTX 780 Ti, 24 GB RAM

Any help would be greatly appreciated.