Hexen: Deathkings of the Dark Citadel is an official expansion to the original HeXen game, enhancing the gameplay experience with 20 new single-player levels crafted by the original development team. This expansion introduces three new hubs, expanding the game's universe and providing players with more opportunities to engage in its dark and immersive world. Additionally, it features a range of new multiplayer options, making it a significant addition for fans of the series.

One of the standout features of Deathkings of the Dark Citadel is its support for LAN multiplayer, allowing up to eight players to connect simultaneously. This was a pioneering move for the genre at the time, setting a precedent for future expansions and multiplayer experiences. The combination of new content and enhanced multiplayer capabilities makes this expansion a noteworthy title in the action gaming category.