How would you run something like this?

[Tinker Gnome]

How would you run a Cross-worlds fantasy game. Meaning that the PC is someone who is from our world, who somehow ends up in a fantasy one. Would you use the classes from d20 modern, or would you have to create new ones. Like "Reluctant Hero", and other things like that. So, how would the folks here at ENWorld do this?

I do not intend to run this sort of game anythime soon, but i am just asking. Oh, and the Pc would more than likely be a child, or at the most a teenager.

 

[Terraism]

It depends on how much you want to alter the game. d20 Modern & D&D work on two very different baseline assumptions, around which the classes are built; D&D expects magic items, whereas Modern is more generous with feats. Mixing them is possible, but I expect it'd take some work.

There's a few ways you can run it. You could have the person drop in, unchanged, into a fantasy world - so that it's a confusing and very dangerous place, and force them to adapt. In this case, I'd appropriate some skills & feats from d20 Modern, and have the PC begin, most likely, as an expert. Eventually, allow him to start taking levels in a core class.

Another option might be to drop him in almost as though he was possessing someone - completely replace some random individual - someone else's body and abilities, but his own mind. So he thinks like a 21st century kid, but his body reacts like a D&D fighter... almost as if it has a semi-conscious mind of its own.

It's an interesting idea, if nothing else. Good question.

 

[Nightfall]

If I ended up in a fantasy world, it better damn well be the Scarred Lands. Course I'd have to kill my double, but oh well.

 

[Tinker Gnome]

Well, thanks for the advice.

 

[Hjorimir]

Reminds me of Gor and Tarl of Koo-roo-ba (or however you spell it). Anyway, the rules of one world need not apply to the other.

I'd probably use both. When on Earth I'd use Modern d20 when in Neverneverland I'd use D&D. Make him of equal level (regardless of where he earnns the xp) on each respective world.

 

[JDragon]

I had thought about doing something like this for a cross-system campaign.

Have the party start in the Modern world (using d20 Modern) that has some arcane things going on that a limited # of people know about.

Then about 6th to 8th level have them transported to a fantasy world (using D&D rules). They would have some idea of what its like but not a lot. (kinda like the book/movie Timeline - I have read the book but not seen the movie yet)

As for the rules, I would allow them to either continue their Modern classes, to a point or start taking the D&D core classes once they could get some training.

At first they would be a bit more powerful with modern equipment, but that advantage would slowly dwindle as they ran out of ammo and batteries dies. The only other thing you would have to deal with is what to do with Action points, unless you sent them to Ebberon (new WoTC setting), which is rumored to be using the action point system.