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Exterus: Tyranny is no available on Steam, but I still can't start it here on GoG.

It went live 15 min ago. Please let me know if you are still unable to download it.
Sanctuary777: There are a few people saying that the GOG version already unlocked for them, but I still keep getting the splash screen that says "Tyranny will unlock on blah blah blah".

I preloaded it through GOG Galaxy. Was that my mistake?
use 'Verify / Repair' option in Galaxy and that should force the update