Stronghold: On the Edge of Chaos

This title is a significant community-developed Mod, a "megawad," built upon Doom II: Hell on Earth, released in 2010 for PC. As a modification, you experience a large-scale, custom shooter campaign supporting both singleplayer and multiplayer modes. Its core value is delivering substantial new content—maps and scenarios—that requires specific source ports like GZDoom to run, pushing the boundaries of the original engine framework.