Complex sentence: Despite a line in the "National Classification Code" stating that "adults should be able to read, hear and see what they want", the adult R18 + classification prior to 1 January 2013, did not exist for video games in Australia.
Split into simpler sentences: Despite a line in the "National Classification Code" stating that "adults should be able to read, hear and see what they want". The adult R18 + classification prior to 1 January 2013, did not exist for video games in Australia.