Napftor
Explorer
So between Sandstorm, Stormwrack, and Frostburn, what have you used from these terrain books? Are they worth purchasing or were the ideas/rules you used things you could have come up with on your own? Don't get me wrong, I'm all for terrain books but I find many of my adventures get back to the city or underground environments in short order (thus making the books a hard sell for me).