Environment / Field manual

Biomes & map planning

Generated maps combine distinct biomes and terrain, creating different route-building constraints.

Historical official contextPage source review 2026-09-25Independent game test: not performed

Green countryside towns and transport routes · Official pre-release image ↗

The confirmed picture

What we know

Steam confirms random maps with distinct biomes.^↗

The environment is divided into four climate zones.^↗

Operations schematicConceptual

Survey before building

TemperateCheck terrain

SubarcticCheck source options

AridCheck available inputs

TropicalCheck crossings

Four climate zones. Confirm resource availability on the actual generated map.

From information to action

How to approach the decision

Editorial planning advice based on the confirmed systems above.

Survey steep terrain, waterways and town positions before buying infrastructure.
Compare the whole route footprint, including terminal access.

A mistake to avoid

A biome label alone does not establish construction cost or resource output.

Unverified values and test limits

Unknown values and independent test scope

Biome catalog, resource distributions and terrain cost values.

Official documentation, historical developer statements and editorial inspection advice have separate scopes. Exact unobserved values remain Unknown. A published global patch does not establish an independent test of this guide.

Put it to work

cargo chain planner

Use your own scenario values. No guessed TF3 presets.

Open tool

Official sources

Steam store

Page source review: 2026-09-25. Evidence policy and source ledger.