I've chosen to play on a skerry, courtesy of the Geological Landforms mod.
Basically an island, the only access is the southern shallow sea (Every island landform has some access to allow for raids and such) and the majority of the ground is rock rather than dirt. I can't leave the tile without either a shuttle or drop pods. The intent is to eventually pack everyone up, get some supplies, and reestablish myself on the mainland.
In the meantime, the lack of soil has lead to an interesting situation. See, it still counts as temperate forest and all the animals are spawning. The majority of what little ground there is has been used as farmland so the animals are starving. The instant one of my crops grows to being harvestable there's a mad scramble as every herbivore descends upon the manna that is a single rice plant, followed by the mad scramble from me to massacre every last animal that's trying to eat my crops. The ground has been littered with corpses (Although not for long, my meat and leather industries are thriving) and stained with blood.
We cannot get out. We cannot get out. They have taken the field and storeroom. Felix and Lynx and Engie fell there bravely while the rest retreated to the bedrooms. We are still holding...but hope …Thomas's party went five days ago but today only four returned. The blood is up to the wall at the research labs. The megasloth took Thomas--we cannot get out. The end comes soon. We hear moos, moos in the dirt. They are coming.
EDIT: While we're here, does anyone know of any modpacks like the old Arbitration: Realistic Research from a13? It was nice having to advance through the ages, only being able to get to higher tech levels once certain things had been build (A bit like adding more microanalyzers for the various tech levels), tooling up pawns so they could actually do their jobs at a decent pace, locking some buildings behind certain resources etc. etc.