So rule 1.3 says "It should be a standalone game, without the need for other game texts." I had an idea for a game that specifically used other texts as part of the game, but not as a supplementary rules thing (Like "Combat as described in D&D 5e" or anything like that), but as a part of the game's mechanics (In a similar way to "Behold: A Game!"). It doesn't actually use the text of other games, but it does ask players to reference literary works or phonebooks or the like. I'm not sure if this is rule breaking or not. I can share the 24-words here if someone would need to make a judgement call on it.