Is there a way for the admin to be able to check each user’s progress on the Achievements? Is it possible to offer a prize for one of the achievements like “the Start of the Journey”?

There isn’t currently a listing in the analytics for tracking player’s Achievements received but we’ve added that request to our list of updates to discuss for a future phase. We also don’t currently have a feature for customizing Achievements. It is something that is being discussed but is not currently available. If these options are of particular importance now, these might be something that could be done as a custom feature for your Arcade.