I tried to launch the game trough steam first but wasn't able. Just gave me unable to launch game. Then I tried to launch the game trough the local files as an administrator but no luck. Just gives me unable to find running instance of steam. I then verified the local files but nothing, they were all fine according to steam. Then tried deleting appcache couple of times, with and without restarting steam and/or PC. Did nothing. Then flushed steam and again nothing. Then I tried changing the api file, again verified so Steam reloaded it. Didn't help either.
If there is a fix please let me know and I will upload any needed attachments or update with info if there is need for it.