Immunity Protocol Multiplayer Guide: Co-op & Modes

Does Immunity Protocol Have Multiplayer?

As of its release on June 9, 2026, Immunity Protocol is a single-player only experience. The game, developed and published by Ijijanbos, does not feature any cooperative, competitive, or online multiplayer modes. Your journey as an immune cell sentinel against the pathogen horde is a solo one.

The core gameplay loop—manual movement with automatic weapon evolution—is designed around a single-player progression system. There are no lobbies, matchmaking queues, or split-screen options available at launch.

Understanding the Single-Player Focus

The lack of multiplayer is a deliberate design choice. Immunity Protocol focuses on a tight, reactive combat loop where your success depends on personal skill, upgrade choices, and real-time positioning. The "auto-shooting" mechanic means your attention is split between movement, dodging, and managing your evolving arsenal.

This design is similar to other popular single-player survival roguelites. You can read more about the core mechanics in our gameplay overview. The game’s challenge comes from the escalating difficulty of pathogen waves, not from player-versus-player interaction.

Future Multiplayer Possibilities

While no official plans have been announced, the developer has not ruled out future updates. Given the game’s structure, potential additions could include:

• Co-op Survival Mode: Two players controlling separate immune cells, sharing upgrades and covering different angles.
• Weekly Challenges: Leaderboards for solo runs, comparing survival times and kill counts.
• Local Co-op: A split-screen option for players on the same PC.

For now, all content is single-player. Check our patch notes for any future announcements regarding multiplayer features.

How to Play with Friends (Current Options)

Since there is no direct multiplayer, you can still share the experience:

• Share Your Run: Use screen recording software (like OBS) to stream your gameplay to friends via Discord or Twitch.
• Compare Scores: After each run, share your final stats. The game tracks survival time, pathogens killed, and upgrades unlocked.
• Race to the End: Start a new game at the same time as a friend and see who can survive the longest or reach a specific boss first.

Alternatives for Co-op Fans

If you are specifically looking for a multiplayer co-op experience similar to Immunity Protocol, you might enjoy other titles in the genre. However, this game remains a solo venture. For a complete breakdown of all solo strategies, see our beginner guide and tips and tricks.

Final Verdict on Multiplayer

Immunity Protocol is a single-player game. There is no multiplayer, co-op, or PvP mode at launch. The experience is designed for one player to master the immune system and survive the pathogen onslaught alone.