Hi, I have a question, I looked around but can't find an answer (even if I'm pretty sure it's a common question).

User bought base game for X. I have added content that requires X+$2 to unlock. Can user just pay the difference and not the full amount again? Since they already paid for the base game? Thanks

I'm also curious about this, so I'll subscribe to the topic and see what the answer is~

Sorry for taking a bit to reply. This currently is not possible but something we definitely want to add. Not sure right now what that's coming though.