Posting as a reply as well since my original post as a comment was an error :) Hi ddunham, I enjoyed chatting with you at WWDC. While I can't comment on when it will be released, this issue has been fixed such that reporting 0% on hidden achievements causes them to become visible. While we'll likely preserve this behavior going forward there are plans to expose a proper "reveal" API in the future as well. Thanks again for the feedback here.