Regions

Nandana is a designed wilderness — a terraformed second Earth whose biomes are really engineered climate districts. That fiction is what lets Landfall range across the full set of Synty nature environments while keeping one coherent world: every biome is a Custodian terraforming zone, and its hazards and regularities are intentional.

Region	Biome	Notes	Status
Landfall Coast	Shoreline / wetland fringe	The Odyssey's landing; first colony	Contested → held
The Aranya Wold	Ancient forest	Deep Custodian territory; ruins beneath	Contested
The Sunder Fens	Swamp / marsh	Amphibious approaches; feral Yaksha	stub
The Ashen Steppe	Drylands / savanna	Open ground; walker country	stub
The Silent Snows	Tundra / alpine	A biome-guardian Lokapala sleeps here	stub

Adding a region

Copy landfall-coast.md or aranya-wold.md. Tie at least one map mechanic to the fact that the biome was engineered — a terraforming vent, a Custodian irrigation grid, buried ruins — so terrain teaches the world's central secret.