Author Topic: RM2 Rules for Doubling/Halving Skill Costs  (Read 585 times)

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Offline Elrich Maltah

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RM2 Rules for Doubling/Halving Skill Costs
« on: November 19, 2021, 05:10:46 PM »
There are a handful of occasions in RM2 where skill costs would be halved, doubled, or even tripled, such as for new secondary skills relative to an existing skill or creating custom professions. However, I've not found any unified rules for how to handle this. The closest is in Arms Companion (2.3.2) that mentions doubling skill costs of 3/7 to 5 and halving costs of 5 to 4/8, and an option for doubling skill costs of 4/8 to 6, and halving costs of 6 to 4/8. Based on the examples of custom professions given in that book, there are several skill costs that have been doubled from 2/6 to 4/12, and one that was doubled from 2/7 to 4/14. There are also some skill costs that were strangely "doubled" from 2/6 and 3/6 to 6.

There's also an option in RMCV (5.3) for character-specific skill costs that talks about dividing existing skill costs. One restriction is that the first cost cannot be reduced to one unless the second cost is reduced to 4 or below. However, there are many examples of 1/5 skill costs in the basic professions through RMCII.

Based on these examples, what should the threshold be for where a twice-per-level skill truly becomes a once-per-level skill when doubled? Should the threshold be based on the cost for the first skill, the second skill, or some combination of both? If a skill that has a cost of 1/5 is doubled to 2/10, what would the tripled cost be (max of 25)?

Offline Hurin

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Re: RM2 Rules for Doubling/Halving Skill Costs
« Reply #1 on: November 19, 2021, 05:32:15 PM »
Welcome to the boards!

I think the truth is that there really wasn't any consistent system in previous editions.

The most consistent skill cost step system is that of RMU, I would say. It deals not so much with doubling costs as having a standard progression (1/2, 2/3, 2/4, 3/4, 3/5, 4/6, etc.). I'm not sure if that helps here, but you could try to adapt it by saying that you first double the number of steps and then calculate the final cost from there, along the standard progression.

E.g. a 1/2 is the first step, and a 2/3 is the second step, and a 2/4 is the third step. To double 2/4, you would double three steps = six steps total. The sixth step along the standard progression is 4/6. So doubling 2/4 gives you 4/6.
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Offline jdale

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Re: RM2 Rules for Doubling/Halving Skill Costs
« Reply #2 on: November 19, 2021, 05:44:43 PM »
It might balance better to just say "two steps down" or "two steps up" (or three) on a scale like that rather than trying to double or halve costs. Also it's easier.
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Offline Elrich Maltah

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Re: RM2 Rules for Doubling/Halving Skill Costs
« Reply #3 on: November 19, 2021, 09:24:26 PM »
Thanks for the feedback, guys. I wasn't aware of the RMU system for that. That certainly would make things simpler than trying to sort out the old rules, inconsistencies and all, for the project I'm working on.