OpenXcom is a community-driven open-source clone that fixes game-breaking bugs (like the difficulty reset bug) and adds modern features like high resolution and scaling.
To download and run on a modern PC, you should use the OpenXcom engine , as the original 1994 release has significant bugs and compatibility issues with modern Windows. 1. Purchase and Download the Base Game X-COM: UFO Defense Download PC Game
: Unzip the OpenXcom files into a new folder on your computer. OpenXcom is a community-driven open-source clone that fixes
XCOM UFO Defense: Walkthrough/Strategy Guide - Steam Community you should use the OpenXcom engine
GEODATA , GEOGRAPH , MAPS , ROUTES , SOUND , TERRAIN , UFOGRAPH , UFOINTRO , and UNITS . 3. Basic Gameplay Guide