Hello @mbcraft, my understanding is that games call Steamworks and tell Steam to give the player an achievement. If the game can't talk to Steam to update your account, then it's up to the game's logic to keep track of that achievement until a later date when you're online again.
This needs to be reported to and evaluated by the game's developer and can not be generalized. Report your issue to the game developer.
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Please describe your issue in as much detail as possible:
After completing a level offline i was expecting giving me an archivement, i didn't got it. Going online with Steam Client didn't gave me the archivement, and subsequently playing online and completing another level i was expecting to gave me an archivement as happened for past ones, didn't gave me any. Seems that something is blocked.
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