I thought I'd share how I have my Murkland world set up here for those interested. In challenge 1 we are only allowed to travel to granite falls and Nukecrest. In challenge 2 you can travel to other places but you have to sell things while you are there (see rules for more on that). So I built out more worlds so i could have a post-apocalyptic feel everywhere my sim went and I needed more places to put new Murkland Salamanders as the group grows. You are free to place what ever lots and such you want as long as they follow the basic Murkland rules about electric objects and plumbing.
Murkland created by Brennachan. Everything on this map was built by her!
I have built some of the lots on the following maps as well as found some in the gallery by other Murklanders.