X-Ray Multiplayer Extension Mod for Windows

What this mod is and who made it

X-Ray Multiplayer Extension Mod (by the xrMPE team) is a free utility that brings cooperative online play to S.T.A.L.K.E.R.: Call of Pripyat. Rather than converting the base game’s PvP focus, it reimagines play as a PvE, team-based experience where players work together against environmental threats and mutant hordes.

Standalone nature and compatibility

This extension is a separate campaign and does not include the original Call of Pripyat game. You’ll still need the base game if you want the full original experience; the mod itself runs as its own content package. If you’re exploring other large community projects, try Anomaly or Dark Signal for different single-player and co-op takes on the Zone.

Core gameplay loop

• Face successive waves of mutants and survive together in a confined section of the Chernobyl Exclusive Zone.
• Use familiar character models, weapons, and mechanics borrowed from Call of Pripyat, so existing players will find it intuitive.
• Expect familiar pacing and atmosphere, but fewer new systems — the focus is on cooperative survival rather than reinventing the core game.

Notable mechanics and artifacts

The mod preserves artifact mechanics but often repurposes their effects. For example, the Ray of Hope artifact no longer functions as in the base game; instead it can drive mutants away, changing its tactical value in team play.

Multiplayer support and tools

X-Ray Multiplayer Extension Mod is notable for its reliable multiplayer performance and includes tooling to help players get into games:

• Built-in guidance for creating or joining lobbies.
• Support for importing and using custom maps.
• A surprisingly stable network experience, rare for community-made multiplayer conversions.

Mod growth and additional modes

Since release, the project has expanded beyond the original defense-style mode. The latest updates add a variety of game modes and community-made content, increasing replayability and offering more ways to play with friends.

Quick alternative suggestion

If you’re simply looking for a different multiplayer/open-world experience (and don’t mind a paid title), consider Grand Theft Auto: San Andreas. It’s a very different game in tone and structure, but a popular paid alternative for players seeking multiplayer action outside the S.T.A.L.K.E.R. universe.

Playing with friends

The mod emphasizes cooperative sessions in an online lobby rather than competitive battles among players. It can be used as a standalone experience or alongside Call of Pripyat, maintaining the original’s look and feel while adding cooperative-focused tweaks.