Deathlands are Zone Tier 1

[exsanguination microtubules]

TerrainDeathlands1 inherits fromTerrain instead of inheriting from TerrainDeathlands. As a result, all Deathlands have zone tier 1. You’ll notice, for instance, that Dynamic Turret Tinkers in the Deathlands spit out short bow turrets and such.

Also seems a bit weird that the Tomb parasang is Zone Tier 1 (it has not RegionTier tag on it)

This is the zone tier map from calling GetZoneTier on every world map parasang.

‌

You can check out https://cavesofqud.gamepedia.com/Template:World_map_with_zone_tiers if you want to see these numbers overlayed on an image of the world map.

[exsanguination microtubules]

Also, this is perhaps a broader issue, but some things in game use the tiers defined in Text.txt, while other things use the tiers defined by world map terrain RegionTier tags (the latter is shown in the image above). These aren’t always consistent and it feels a bit weird/confusing to have the game using two different tier systems.

[chaos]

Fixed in next update.