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Making new D&D work for old D&D
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<blockquote data-quote="MerricB" data-source="post: 1414785" data-attributes="member: 3586"><p>My basics for converting 3E to 1E:</p><p></p><p>Ignore any plusses. A hit dice score of 4d12+16 becomes simply 4 HD in 1E. (or 4+1 if you like) Damage works likewise: 1d12+6 converts to 1d12</p><p></p><p>NPCs - pick an AD&D class that is close, and use that at the given level.</p><p></p><p>Spell casting times are simple: equal level for Wizard/Sorcerer spells, equal level+3 for Cleric/Druid spells for those that take 1 action; otherwise straight conversion.</p><p></p><p>The best reason for converting 3E to 1E would have to be Gary Gygax's <em>Necropolis</em>. <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7" class="smilie smilie--sprite smilie--sprite1" alt=":)" title="Smile :)" loading="lazy" data-shortname=":)" /></p><p></p><p>Saving Throws: if the DC is 20-24 give a -2 penalty to the save; 25-29 give a -4 penalty, 30+ give a -6 penalty. If the DC is 10-14, give a +2 bonus. The type of save should be obvious in 1E.</p><p></p><p>I don't see any reason why it can't be done "on the fly"; I can do similar for 1E to 3E, so the reverse should be simple.</p><p></p><p>The one thing to remember is the divergence in level requirements: a 1st level adventure in both systems is fairly similar, but a 15th level 3E adventure probably needs 18th+ level 1E characters.</p><p></p><p>Cheers!</p></blockquote><p></p>
[QUOTE="MerricB, post: 1414785, member: 3586"] My basics for converting 3E to 1E: Ignore any plusses. A hit dice score of 4d12+16 becomes simply 4 HD in 1E. (or 4+1 if you like) Damage works likewise: 1d12+6 converts to 1d12 NPCs - pick an AD&D class that is close, and use that at the given level. Spell casting times are simple: equal level for Wizard/Sorcerer spells, equal level+3 for Cleric/Druid spells for those that take 1 action; otherwise straight conversion. The best reason for converting 3E to 1E would have to be Gary Gygax's [i]Necropolis[/i]. :) Saving Throws: if the DC is 20-24 give a -2 penalty to the save; 25-29 give a -4 penalty, 30+ give a -6 penalty. If the DC is 10-14, give a +2 bonus. The type of save should be obvious in 1E. I don't see any reason why it can't be done "on the fly"; I can do similar for 1E to 3E, so the reverse should be simple. The one thing to remember is the divergence in level requirements: a 1st level adventure in both systems is fairly similar, but a 15th level 3E adventure probably needs 18th+ level 1E characters. Cheers! [/QUOTE]
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