OpenXcom requires the original X-COM resources (any version). If you have the Steam version, you can find the game folder in "Steam\steamapps\common\xcom ufo defense\XCOM". Just copy the game subfolders (GEODATA, GEOGRAPH, MAPS, ROUTES, SOUND, TERRAIN, UFOGRAPH, UFOINTRO, UNITS) to OpenXcom's Data folder (usually the DATA subfolder).
The installer will automatically detect Steam installations and take care of the resource copying for you, just follow the instructions.
If installing manually, copy the resources to the data subfolder.
Mac OS X
Copy the resources to the application’s data resource (right click the application > Show Package Contents > Contents > Resources > data).
OpenXcom requires the following libraries:
- SDL (libsdl1.2)
- SDL_mixer (libsdl-mixer1.2)
- TiMidity++ (timidity)
- SDL_gfx (libsdl-gfx1.2), version 2.0.22 or later
- yaml-cpp, version 0.2.6 or later
Check your distribution’s package manager or the library website on how to install them.
If installing through a package manager, you should copy the resources to /usr/share/openxcom/data, otherwise the data subfolder is preferred.
In most cases the OpenXcom data is in the data subfolder, but it will also look in one of the following paths:
- <working directory>\data
- <binary directory>\data
- C:\Documents and Settings\<user>\My Documents\OpenXcom\data (Windows 2000/XP)
- C:\Users\<user>\Documents\OpenXcom\data (Windows Vista/7)
- <application resources>\data (Mac OS X)
- ~/Library/Application Data/OpenXcom/data (Mac OS X)
- $XDG_DATA_HOME/openxcom/data (Linux)
You can also specify your own path by passing the command-line argument "-data ". The X-COM and OpenXcom data can be in different folders.