Transport Fever 3 maps, climates, regions and weather
Quick answer
Transport Fever 3 confirms four environments: temperate valleys, subarctic swamps, desert plains and tropical islands. Randomly generated maps use distinct biomes, while dynamic weather, cloud coverage, lighting and a day-night cycle change the presentation of the network.
Compare the four environments
| Climate | Confirmed landscape cue | Route decision to inspect |
|---|---|---|
| Temperate | Valleys | River crossings, town corridors and grade |
| Subarctic | Swamps | Buildable ground and long connections |
| Desert | Plains | Sparse geography and exposed corridors |
| Tropical | Islands | Bridges, ports and multimodal transfers |
These are planning prompts, not claims that a particular climate has a fixed cost multiplier. Use the actual terrain and industry placement shown by a generated map before committing to a mode.
Choose a map deliberately
- Find the major physical barriers: water, mountains, swampy ground or island separation.
- Locate towns and industries, then sketch the shortest useful passenger and cargo corridors.
- Decide where bridges, tunnels, ports or airports are requirements rather than decoration.
- Check climate-specific industry differences and leave room for town growth.
- Use the in-game map editor when a custom or closely reality-based layout is the goal.
Players have specifically asked how regions and map size affect gameplay. The official material confirms regions, biomes and varied challenges, but it does not provide a dependable public table of exact map dimensions here. The official environment article is the best starting point for the announced generator and terrain direction.
The day-night option is visual rather than a timetable system: an official developer response states that it does not create time-of-day demand changes. That distinction matters when planning passenger frequency.
Test the map before committing
Use an inexpensive first connection as a map test. A short road or rail segment can reveal whether a slope, river crossing or town approach is practical before the main corridor absorbs the budget. Keep potential station sites visible while testing; the cheapest line between two points is not useful if its terminal cannot serve the industries or districts that justify it.
On island and coastal maps, compare a bridge with a water connection rather than assuming land infrastructure is automatically faster. In mountainous terrain, compare a tunnel with a longer contour-following route. The relevant result is total service performance: construction, vehicle cost, travel time, capacity and the quality of each transfer.
Weather and lighting can make a route look different without changing passenger demand by time of day. Use the available overlays and labels to judge the network, especially when fog, shadows or dense vegetation reduce visual clarity.
Before investing heavily, verify four things:
- the terminal can fit and expand;
- the approach does not require an awkward grade or turn;
- the chosen mode reaches both sides of a physical barrier;
- nearby town growth will not trap the corridor.
This method works across generated and edited maps without inventing a single “best” climate. It also keeps terrain, access and expansion visible in the same decision.