Main directory

1. What is the main directory?

The OMSI main directory is a folder on the hard disk that contains all the game files.

With a few exceptions, all files in OMSI are stored in plain text. Most file formats

can be opened with the Windows text editor or other comparable software (e.g. Notepad++) and can be read and understood by humans. Exceptions to this are binary data(.exe, .terrain), compressed formats (.o3d) and textures, the latter can be opened with common image editing programmes.

Further information on the file formats used.

Unlike many other games, OMSI does not have its own separate folder in the user's documents folder, all files are located in the main directory or subfolders. A unique selling point of OMSI is for this reason the possibility for distinct modding - theoretically (almost) all files themselves can be modified, so there are no limits to customisation.

The first level of the main directory contains general files, such as the Omsi.exe, the game starts, changelogs and the log file.

2. Location of the main directory

The directory is located in the virtual games library (essentially also a folder on the hard disk) created via Steam. The library can be selected when installing / moving games. Several libraries can also be set up in parallel, so that certain games can be installed on a different hard drive, for example.

The exact path differs from system to system, below is a short list about

possible paths:

C:\Programmes (x86)\Steam\teamapps\common\OMSI 2
C:\Programmes\team\apps\common\OMSI 2
D:\Programmes (x86)\Steam\teamapps\common\OMSI 2
D:\Programmes\team\apps\common\OMSI 2
C:\Games\teamapps\common\OMSI 2

The location of the main directory can be found out in Steam as follows:

1. open Steam:
   If you search for "Steam" in the start menu and click on it, Steam opens. Depending on the equipment of the PC or the last Steam start, this may take some time. Afterwards - if not yet done - the login with the Steam account follows.
2. show library:
   
   Now an overview of all installed or purchased applications opens. If you do not see OMSI, you must delete the filter (X symbol behind the text):
   
3. Open the properties of OMSI 2:
   After right-clicking on the "OMSI 2" entry and opening the properties, the following dialogue, in which you switch to the "Local files" tab:
   
4. Display local files:
   The button "Browse local files..." leads directly to the OMSI main directory

3. Overview of the most important folder

This section lists what the subfolders of the main directory are useful for, and which files they contain.

3.1. _Tramway

This folder contains files that are needed to use the Patch Changer.

3.2. Addons

Additional documents (timetables, manuals etc.) for payware and freeware AddOns such as PDF-Manuals and road maps, not game data.

3.3. DEMImport

Programme files for DEM import (elevation data according to real model)

3.4. Drivers

If you want to change your driver file or profile picture (manually), we recommend that you take a look at this Folders. .odr files correspond to the driver files and the associated .bmp images to the Driver profile images. These must always have the same name as the driver file.

3.5. Fonts

Fonts are located here. They include colour files, configuration files and transparency files.

3.6. GUI

GUI stands for Graphical User Interface. In this folder you will find all image files that generate the GUI. There are several images per language (English

(default) and German). The loading screen can also be changed here.

3.7. helper

Here you will find auxiliary and other files (objects for the moon and sun) and various files for the

OMSI editor (e.g. docking/separation point on splines). The textures for this are in the textures folder of

OMSI.

3.8. Humans

Here are all the necessary files for people (walking on the pavement / sitting on the bus), i.e.

Objects, textures, passenger voices and configurations. Default folders are aXYZ and Other.

3.9. Inputs

All settings made on the keyboard and additionally connected game controllers in the

settings of OMSI are saved here. All other settings are saved directly in the

main directory under the name options.cfg.

3.10. Languages

All language files for the GUI are located here. These are .olf files. The term that

specified for the text field during programming is always at the beginning of the line. Followed by a tab stop, the "translation" is in the last position in the line. Any number of language files can be created. German (DEU), English (ENG), French (FRA), Polish (POL) and Hungarian (HUN) is already included, other languages have been provided free of charge by community members created.

3.11. maps

One of the most well-known folders of the main directory. Here are all the files that are needed for an OMSI map, i.e. terrain files, definitions of map-specific AI traffic, timetables, etc. Each map uses other folders (Sceneryobjects for objects and Splines for splines); these folders are also needed.

3.12. Money

Here you will find all the files for currencies in OMSI, so that different coins and notes can be used with the cash registers are used in buses.

3.13. option_presets

If you save your options in OMSI, they are saved here. However, if it is the

options currently in use, these are located directly in the home directory and can be found under options.cfg find.

3.14. plugins

So that you can continue to use variables from OMSI in other programmes, for example (Example: bus operation simulator), it requires plugins. These plug-ins are in the programming language "Delphi" and are executed when OMSI is started.

3.15. program

All text files with predefined and system variables can be found here. They should under no circumstances circumstances, but only serve as a reference for the application and the developer!

3.16. RegAddons

For copy protection, .reg files are saved here when installing a purchased OMSI add-on.

3.17. Sceneryobjects

This folder contains all (SCO) objects for the scenery.

3.18. Screenshots

If you use the screenshot function of OMSI, the pictures are saved here.

3.19. Scripts

Standard scripts for AI traffic and vehicles.

3.20. SDK

SDK stands for Software Development Kit. However, it does not quite live up to its name not, to be able to use the SDK tools completely, you have to download them here.

3.21. Situational

All situations that the user saves are found here. They are divided into .osn, .owt and .dsc files. The latter are language files for situations supplied by the OMSI developers or AddOns.

3.22. Sounds

General sound files such as rain, footsteps of AI humans and engine sound for AI cars.

3.23. Splines

Here you will find splines (roads and pavements, generally routes on the x-axis where you can set a length and angle and create paths).

3.24. template

This folder contains a standard map folder that works without any objects or splines and serves as a template for your own maps.

3.25. Texture

Here are general textures (texture packs, maps, objects, splines), OMSI standard textures and split textures from various AddOns.

3.26. TicketPacks

TicketPacks define tickets for passengers - including cost, max. journey length, name,

time of day and much more.

3.27. Trains

In .zug files, paths to .bus or .ovh files are listed one after the other, which together make up a train of rails.

3.28. Tutorials

All files (text, pictures) for the tutorials in OMSI are located here. They can be called up in the main menu under "Tutorials".

3.29. Vehicles

All vehicles - from AI cars to buses, trains and planes, as well as exotic vehicles -.

have their place here.

3.30. Weather

The weather in OMSI is defined by .owt and .dsc files. The ICAO.txt file contains all

Airport codes for real weather.