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Mod articles
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The Rule of One and Modding Bethesda Games
What is the rule of one?
The rule of one means that all Bethesda titles only ever use the last record of any given formid. This is why we can change the game.
How it works is like this: A formid is created. Every succeeding record with the same formid then replaces that record in it's entirety. So if I have a specific formid, and 100 people make changes, that means I now have 101 records with that formid. They are then read sequentially by the game engine until the last record is read. Every time the engine looks at the next record, it essentially forgets all the prior records and only remembers the last one read. This means that 99 of those 100 changes are completely discarded and not seen by the game. Since a patch is just another succeeding record, all ...