Originally Posted by Kalzazz (Post 1246829)

Is it possible to create stuff using RPM? For instance food, water or ammo?

Originally Posted by Rev. Pee Kitty (Post 1246841)

(Food and water are a minor issue in that all created matter expires at the end of the spell's duration, but I'd say that as long as the duration has at least a day to go when you consume it, you're fine. By that time, your body has already used up all of the nutrition it needs and passed everything it doesn't.)

Originally Posted by Kalzazz (Post 1246848)

Ah. How would you assign the difficulty for the 'can you make this' check?

Given the differences involved between say 'blackpowder and lead ball' '.45 ACP' 'cyanide tipped ADPS caseless whatevers' and 'Railway Cannon'

Originally Posted by starslayer (Post 1247229)

I think; just to prevent 'I create a +8 grimore of create matter grimore' type scenarios

Originally Posted by Rev. Pee Kitty (Post 1247264)

That isn't viable. PCs can't create grimoires anyway, not to mention it's stated several times that you can't use magic to get better at magic. You can't cast a spell to give yourself Magery, a ritual that gives you extra FP has the build-in limiter that said FP aren't sacrificable for magical energy, and so on. Grimoires are no exception.

Originally Posted by Rev. Pee Kitty (Post 1247264)

Sure, that's fair. I would let a caster/gadgeteer waive the need for a roll to determine quality, especially since you're not inventing something, just making it. If you are inventing something new, make a "Some Assembly Required" roll (MH2, p. 24) instead of a craft roll.

For everyone else, a craft roll is necessary. It's fairest and most balanced to tie the result in to the dollar value of what's being created (much like Gadgeteer does). Off the top of my head, I'd probably do something like:

MOD / ITEM COST ("Up to...")
0 $10
-1 $20
-2 $50
-3 $100
-4 $200
-5 $500
-6 $1,000
etc.

Originally Posted by starslayer (Post 1247274)

Wow- you were MUCH harsher then I was for the sliding scale of cost/penalty.

Originally Posted by Kalzazz (Post 1247321)

Can you cast a spell to give you a bonus to Mechanic (item in question) or is that also precluded under 'can't use magic to get better at magic'?

Originally Posted by Rev. Pee Kitty (Post 1247725)

Bear in mind that was strictly off the top of my head. GURPS doesn't really have an official set of "quick and dirty" rules for assigning penalties to craft rolls, because there are so many factors and variables and all that. (LTC3 touches on this, but it instead applies longer times to harder crafts, which isn't directly applicable here.) If you want something a bit less harsh, you could turn my 1/2/5 progression into a 1/3/10 one:

$10 = 0
$30 = -1
$100 = -2
$300 = -3
$1,000 = -4
$3,000 = -5
$10,000 = -6

Though that feels too lenient to me. I prefer my first progression.



Good question. I'd say that the craft roll is not part of the magic spell -- it's just a way for the GM to see how well you were picturing the item's details in your head. So you could give yourself a Mechanic or Engineer bonus, yes. That might even be a nice way to balance out the power of a specific "Create" spell for an expensive item -- add in the spell effect and bestowed bonus to cancel out the huge penalty for imagining it properly.