There are several languages supported for Train Simulator.
To change the language settings in-game:

1- Right click Train Simulator in your Steam games library

2- Select properties> Language

3- Select a language from the dropdown box and click 'close'

4- Restart the game

Here is list of langauges we support:

• English
• German
• French
• Italian
• Spanish
• Polish
• Russian

NOTE: Some of the languages have partial support only. This means that while the core game may be translated, some DLC may not be.