The firefly is a master of chemistry, capable of turning homemade chemicals into bombs, gases, and toxins (to name a few).
Or maybe make things worse.
The Carcass is a roleplaying story game where players take on the roles of the last members of a dying post-apocalyptic tribe. The tribal leader is dead, the community in tatters, and the future a mystery. What will become of you in this barren wasteland?