When it says game material made outside of the time IS allowed, does that mean I can just start making it now? kinda confused what the 30 day limit is for if this is the case.
Yes, you can start working on it now - you just run the risk of your initial work not lining up with the theme if you don't know what it is.
The rule is intentionally a bit odd since this is going to be one of the last instances of the jam and each of the final jams are planned to have a twist in the rules. This one's twist is that materials made early are allowed, but using third party assets is not.
