Post Apocalyptic/Nuclear Gaming System

Based on material adapted for D20 Modern by

Cristopher C. Frank & Mongkubneeramid Majava

This material is Open Game Content, and is licensed for public use under the terms of the
Open Game License v1.0a.

The goods, take a look! . There is some more helpful info there.

Post Apocalyptic Nuclear Gaming System: D20 Modern Fallout System