Source (required if based on other people's work): https://github.com/SupSuper/OpenXcom/
An open-source clone of the original UFO: Enemy Unknown (X-Com: UFO Defense in USA)
OpenXcom requires a vanilla version of the original UFO: Enemy Unknown / X-COM: UFO Defense (any edition) with the latest patch.
It is not compatible with other games in the X-COM series.
NOTE: This is only to provide appimages, I am not the developer.
