OpenXcom requires the original X-COM: UFO Defense game data to play. Upload your UFO/ data folder below. The files will be stored in your browser and persist across sessions.
Need the game? Grab it on Steam or GOG for under $2.
Look for the folder containing GEODATA, GEOGRAPH, MAPS, SOUND, etc.
Steam (Windows): C:\Program Files\Steam\...\XCom UFO Defense\XCOM\
Steam (macOS): ~/Library/Application Support/Steam/.../XCOM/
Steam (Linux): ~/.local/share/Steam/.../XCOM/
GOG (Windows): C:\GOG Games\X-COM UFO Defense\
Have a save backup? If you previously exported your saves, you can restore them here before starting the game.
The game failed to start. Details below.
Startup log: