OpenApoc
PC port of X-COM: Apocalypse
- ReimplementationPort Type
- OpenApoc TeamDeveloper
- 26 Oct 2026Page Updated
Details
- Developer
- OpenApoc Team
- Port Type
- ReimplementationThe game was rebuilt in new code that plays like the original and loads its data from your own copy.
- AI Use
- Not statedThe developers haven't said whether they used AI.
- Source Code
- GitHub
- Original Release
- ufopaedia.org
- Page Updated
Platform Support
- Windows
Screenshots
cd.iso), or the game files from GOG or Steam set up as the project’s guide describes.Overview
Mod SupportWidescreen
OpenApoc is an open-source re-implementation of X-COM: Apocalypse, Mythos Games’ 1997 strategy game, started by PmProg in 2014. It needs the original game’s files and is written in C++ with SDL2. Julian Gollop, the designer of the original X-COM games, has said he supports the project.
It aims to recreate the game’s city view and tactical battles while making almost everything moddable, from balance to new content, and its saves are human-readable XML in a zip archive. Its builds are published as pre-releases while work continues.
How to Set It Up
- Download the Windows installer or zip and install or unpack it.
- Copy your X-COM: Apocalypse CD image into the
datafolder ascd.iso, or follow the project’s setup guide for the GOG or Steam release. - Run
OpenApoc(or its launcher). The builds here are the project’s pre-release builds.
