A look on google shows that you have at least 1 online payment provider that accepts, supports and converts Iran rials.
Edit: Additionally, Iran does have restrictions, of course. A look into the legal regulations shows that. Steam doesn’t support Iran it seems, which I find a little weird.
I’m guessing not since everything is still there…
EDIT: Apperantly it did. Thanks for not resetting our purchases! Even though the poll said otherwise?