Gamma World races <=> 4Ed races?

[OchreJelly]

I got GW yesterday and have pretty much digested the whole thing. Really if you know 4E, learning the differences in this is a breeze. But there is another major mechanical difference between DND PC's and GW PC's that I don't think has been mentioned. The math is actually somewhat different.

In DND your typical check /attack would be d20 + half-level + modifier
In GW your typical check / attack would be d20 + level + modifier

I don't have the book in front of me, but I could swear that's right. Just keep that in mind if you plan to do any kind of cross-over.

On weapons:
I do like the fast and loose approach to weapon and ammo management. However it does come at the price of some diversity. Like lets say a character wanted his light gun to be a sawed-off shotgun. A single-target ranged 10 shot feels kinda weird in that respect. I'm thinking of house-ruling some minor gun variations. Like I don't think it would break the game to make sawed-off shotgun range change from a 10 to a blast 3 and treat it as a light gun. I hope doing something like that doesn't step on the toes of powers or Omega tech. Likewise I'm thinking of some "spray" rules for autofire weapons. Maybe a mashup of the 'power attack' feat...

 

[Neonchameleon]

I got GW yesterday and have pretty much digested the whole thing. Really if you know 4E, learning the differences in this is a breeze. But there is another major mechanical difference between DND PC's and GW PC's that I don't think has been mentioned. The math is actually somewhat different.

In DND your typical check /attack would be d20 + half-level + modifier
In GW your typical check / attack would be d20 + level + modifier

In DND, monsters have a typical check/attack of d20 + level + modifier. PCs get half level, feats, stat boosts, and equipment. So a L10 stock PC can expect to have d20 + half level + 2 (magic weapon/implement) + 1 (Expertise) + 1 (boosted stat). = d20+9 vs d20+10. A 1 point difference over ten levels - and that assuming that the PC doesn't have a +2 item at L10.

For that matter over 30 levels, a PC can expect as a minimum to get d20 + half level + 6 (magic weapon/implement) + 3 (Expertise) + 4 (+8 to primary stat) = +28. Many Epic Destinies give +2 to at least one of your stats, so +29 is trivial for anyone.

All of which means that the GW PC is one point ahead to hit at level 1 (assuming expertise wasn't the first feat chosen - d20 + 1/2 + modifier, rounded down vs d20 + 1 + modifier), one point ahead at level 10, and one point ahead at level 30. That reads like pretty close scaling to me.

Just don't give GW PCs magic weapons/implements...

 

[OchreJelly]

I should have mentioned that the GW weapon categories have the "proficiency" modifier (although I don't think it's called that). Like I believe light weapons are +3 to hit and heavy weapons are +2. So it's really d20 + level + prof + ability mod. But yeah otherwise there isn't any feat modifications.

Most of the Omega stuff, though, has a lot of accuracy baked in such as +6 to hit with an Omega gun. That makes sense since they are expendable - you really want them to hit.

 

[Negflar2099]

All of which means that the GW PC is one point ahead to hit at level 1 (assuming expertise wasn't the first feat chosen - d20 + 1/2 + modifier, rounded down vs d20 + 1 + modifier), one point ahead at level 10, and one point ahead at level 30. That reads like pretty close scaling to me.

Just don't give GW PCs magic weapons/implements...

So would this mean that if the regular 4e PCs use the Inherent Bonuses system from DMG 2 than they will match the GW PCs? If so that's a pretty simple fix.

My dream is nearing fruition. MWAA HAA HAA HAA!!!