All concepts 
World · Social structure

Isolationist

Social structure maintaining a hermetic, hidden society, driven by deep xenophobia or the protective preservation of volatile assets.

The mystery of a hidden society, the tension of forbidden contact, and the exploration of deep-seated xenophobia. It's the feeling of being on the edge of the unknown, where the outside world is a threat and the inside world is a secret.

Books

Brightness ReefDavid Brin
The WallJohn Lanchester
Powers That BeAnne McCaffrey
WildsideSteven Gould
Treaty at DoonaAnne McCaffrey
PlanetfallEmma Newman
Rork!Avram Davidson
ContrarianL. E. Modesitt, Jr.
MandrakeSusan Cooper
ArkhangelskElizabeth Bonesteel
MothsJane Hennigan
Half a CrownJo Walton
Neptune's childrenBonnie Dobkin
Stronghold risingLisanne Norman
Fires of NualaKatharine Eliska Kimbriel
EscapementJay Lake
Beyond the gatesCatherine Wells
Daughters of an Amber NoonKatherine V. Forrest
Facial justiceL. P. Hartley
HarmonyMarjorie B. Kellogg
Invisible BarriersDavid Osborne
The Golden ApeAdam Chase
The SanctuaryAndrew Hunter Murray
The MagestoneMary H. Schaub
The DeviatesRaymond F. Jones
The TerridaeE. C. Tubb
Serpent's ReachC. J. Cherryh
The Purity PlotE. E. "Doc" Smith
The Fall of WaterstoneLilith Saintcrow

Related

War-TornCryptocracyHidden WorldAnarchyVirtualHedonisticSocial OstracizationUtopianPredatoryClinical