Immunity Protocol Troubleshooting Guide: Fix Common Issues

Game Not Launching or Crashing on Startup

If Immunity Protocol fails to start or crashes immediately, first verify your system meets the minimum requirements. Check our system requirements guide for details. Common fixes include updating your graphics drivers, verifying game files via Steam (right-click the game in your library, select Properties > Local Files > Verify integrity of game files), and disabling overlays from Discord or GeForce Experience. Running the game as an administrator can also resolve permission-related startup failures.

Performance Issues and Low FPS

Stuttering or low frame rates often stem from incorrect graphics settings. Open the in-game options and reduce the resolution scale or disable V-Sync. The pixel art style is not demanding, but the dynamic pathogen swarms can tax your CPU. Close background applications like browsers or streaming software. For persistent lag, lower the "Particle Density" and "Shadow Quality" settings. Refer to our performance guide for advanced tweaks. If you are on a laptop, ensure the game runs on your dedicated GPU rather than integrated graphics.

Controls Not Responding or Input Lag

If your keyboard or mouse inputs feel delayed or unresponsive, check that no other controller software (like Steam Input) is conflicting. Go to the controls menu and reset bindings to default. Disable any mouse acceleration in your operating system settings. For wireless peripherals, replace batteries or move the receiver closer to avoid interference. Our controls guide offers a full list of supported inputs and rebinding steps.

Audio Glitches or Missing Sound

Missing sound effects or crackling audio can ruin the neon atmosphere. First, verify your audio device is set to the correct sample rate (48,000 Hz) in Windows Sound settings. In-game, toggle the master volume off and on again to reset the audio engine. If the problem persists, update your sound card drivers or switch to a different audio output (e.g., from speakers to headphones). Disable any third-party audio enhancements like Dolby Atmos.

Save File Not Loading or Corrupted

A corrupted save file can erase your progress. Immunity Protocol stores saves locally; locate them in %AppData%\Ijijanbos\ImmunityProtocol\Saves. Always back up this folder before attempting fixes. If the game fails to load a save, try loading an earlier backup from the same folder (files are timestamped). Restart the game and select "New Game" to confirm the save system works. For more details, see our save file guide.

Online Features and Multiplayer Issues

Although Immunity Protocol is a single-player game, some achievements and leaderboards require a stable internet connection. If achievements do not unlock, restart Steam and ensure you are online. Disable any VPN or firewall that might block Steam's API. For leaderboard submission errors, wait a few minutes and try again. The game does not support co-op or multiplayer, so ignore any third-party mods claiming otherwise — they may break your installation.

General Bug Reporting and Final Tips

If you encounter a bug not listed here, capture a screenshot or video and include your system specs. Visit the official Steam discussion board for Immunity Protocol to report issues directly to the developer Ijijanbos. Keep the game updated via Steam to receive the latest patches. For a smoother experience, close unnecessary background processes and run the game in fullscreen mode. Check our beginner tips guide for gameplay advice to avoid frustration during intense pathogen waves.

Troubleshooting Checklist

• Verify game files on Steam

• Update graphics and audio drivers

• Disable overlays (Discord, GeForce Experience)

• Run game as administrator

• Lower in-game graphics settings

• Close background applications

• Check antivirus exclusions for the game folder

• Reset control bindings to default

• Backup save files before modifying

• Verified game files integrity

• Updated GPU drivers to latest version

• Disabled all third-party overlays

• Set game to run on dedicated GPU (laptops)

• Lowered particle density and shadow quality

• Reset audio device to 48,000 Hz sample rate

• Backed up save files from AppData folder