Great drama is at the core of the Gaming Experience. The character’s can’t be fighting the destruction of the world every session (though that can be fun), but there is great fulfilment in the climatic scenes of a campaign or long term adventure. Every climax is not seen in terms of violence (though it is very common). The personal stories of PC’s and NPC’s should also have meaningful expression in adventure climaxes. Yet all Climaxes in a campaign have similarities.
World Packs are the ONLY WAY TO GO!
Consider the idea of spontaneous genesis of life, as used to be belived. What strange kinds of life might arise from modern substances? What kind of vermin would a landfill produce, or an oil spill on the ocean?