Titan Quest - Anniversary Edition > Technical Support

titan quest AE


i was playing Titan Quest AE with ragnarok installed last night with no problems.  i found atlantis on sale today from the same place that i got ragnarok so i bought and and installed it.  as soon as it was done i got an:  error: Not authorized to run the game!  i have tried every permutation to get around it and nothing seems to work.  i am at a loss.

Welcome to the forum. Where have you purchased your game? Someone will give you advise what to do in next hours :)

Medea Fleecestealer:
Welcome to the forum.  :)

Try verifying the game files.  Right click on the game's icon in your library, go down to Properties and then across to Local Files.  Then choose the Verify Integrity of Game Files option.


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