Now Open X-COM has appeared, written in C++ using the SDL library with open source code for Linux, Mac OS X, Windows, and other operating systems, featuring fixed bugs and fantastic modding capabilities. The project has been under development since 2009. Version 1.0 from 13 June 2014 allows fully completing the game from start to finish. To launch the game, a copy of the original UFO: Enemy Unknown and X-COM: Terror From The Deep is required (resources from DOS, Windows, and Windows CE versions are supported).
http://ufopaedia.org/index.php?title=TFTDextender
http://www.ufopaedia.org/index.php?title=Enemy_Unknown_(1994)_Extended
http://openxcom.org/
There are also descriptions in Russian on Ufopedia for those who would like to learn more about the game but do not know the language.
P.S. Due to the inability to create a section and the lack of a general section for "other games," I am writing here. :) If no one is interested, please don't kick me too hard; well, everyone has their own obsession... :D




