Hi OzBit! The US-only rule only applies to games that are selected as the winners of the game jam. We still encourage developers outside of the US to participate in the jam. We're sure we'll get a lot of great games from this jam and while we can't select them all to be the top 3 winners, there is a possibility to still work with us on a nonexclusive license for the game if it closely aligns with the theme.