In RAD, players travel to a post-post-apocalyptic game world in which mankind has already experienced the end of the world twice. In the role of a youthful protagonist, one must venture into the wasteland, a constantly changing, radioactive environment filled with unknown and never heard of creatures.
In this wasteland one should find a solution for healing the world, filling the broken, barren landscape with new life. However, the future of mankind is expensive, as more and more nasty toxins are exposed as we venture deeper into unknown lands. This damages one's own fragile human form, leading to random mutations.