I have contacted the Steam help desk directly, with the following Email:I recently purchased GTA Vice City on steam, however in order to add modifications to the game, you need to have version 1.0, and Steam automatically downloads a version higher than 1.0.
Is there a way to downgrade my version of GTA Vice City to 1.0? Apparently last year, you were sending version 1.0 instead of whatever version you are now.
Thanks in advance Two days later I got this reply:
Thank you for contacting Steam Support.
Unfortunately there is no option to revert back to an older version of the game for games purchased through Steam.
I'm sorry, but we will be unable to assist you with this issue.
Please let us know if you have any other questions.
Hope that answers people's questions