Immunity Protocol Co-Op Guide: How to Play Together

Current Co-Op Status

Immunity Protocol is currently a single-player experience. As confirmed by the developer Ijijanbos, the game launches on June 9, 2026, with a focus on solo survival. You control a single immune cell sentinel, manually moving while your weapons auto-fire against evolving pathogen waves.

There is no official co-op mode at launch. This means you cannot play through the campaign with a friend in the same session. However, many players are asking for this feature, and we cover what we know about future possibilities below.

How to Share the Experience

Even without direct co-op, you can enjoy Immunity Protocol with friends. The game’s pixel art style and intense auto-shooting action make it great for streaming or sharing a screen.

• Steam Remote Play Together: Use this feature to let a friend watch your gameplay. They can see your upgrades, boss fights, and survival strategies in real time.
• Local Hot-Seat: If you play on the same PC, you can take turns after each run. Compare your scores and progression.
• Community Challenges: Share your best runs on forums. Discuss which class or loadout worked best against tough enemies.

For more tips on starting out, check our beginner guide.

Will Co-Op Be Added Later?

The developer Ijijanbos has not announced any co-op update. However, the game’s structure—with its wave-based survival and upgrade system—could support a future co-op mode.

If added, co-op might allow two players to control separate immune cells, each with their own skills and perks. This would add a new layer of strategy, as you could combine different character builds to handle pathogens more effectively.

Keep an eye on official patch notes for any announcements.

Alternative Ways to Play Together

If you want a multiplayer experience right now, consider these options:

• Speedrun Competitions: Race against friends to see who can survive the longest or defeat a boss first. Use our speedrun guide for tips.
• Community Events: Some players organize unofficial events. Check the community guide for links to Discord servers and forums.
• Mod Support: The game may eventually support mods. A mods guide will be available if this happens.

For more on the game’s mechanics, read our mechanics guide.

Tips for Solo Play

Since co-op is not available, mastering solo play is key. Focus on these areas:

• Movement: Stay mobile. The auto-fire system means you only control positioning. Practice dodging pathogen waves.
• Upgrades: Invest in gear that boosts survivability. Early upgrades can make a big difference.
• Enemies: Learn enemy types from our enemy types page. Each pathogen has unique attack patterns.

For a complete walkthrough, see our walkthrough guide.

Final Thoughts on Co-Op

While Immunity Protocol is a single-player game at launch, the community is hopeful for future co-op support. For now, use the tips above to share the experience with friends through streaming or challenges.

Stay updated by following the official Steam page. For more guides, check our tips and tricks and achievements guide.