The Callisto Protocol update 1.011 patch notes released for PS5 and Xbox Series X/S players. According to The Callisto Protocol 1.011 patch notes, the latest update adds a new hardcore mode and resolves game crashing and stuttering issues. Apart from this, The Callisto Protocol version 1.011.000 also includes performance improvements.

Previously, the update day 1 patch added various tweaks and changes to the game. Recently, update 1.06 addressed major stuttering issues. Unfortunately, since the release, players are reporting a number of glitches and issues. Today’s Callisto Protocol patch 1.011 will fix a few of these issues.

Read more details below.

The Callisto Protocol 1.011 Patch Notes

The Callisto Protocol Update 1.06 Patch Notes

  • Added a new Hardcore mode.
  • Added new Achievements/Trophies.

Hardcore Mode

A challenging take on The Callisto Protocol’s survival-horror experience, intended to push you to your limits, Hardcore mode is not for the faint of heart. Here’s what you can expect;

  • Ammo, health and credits are harder to come by and not every Biophage will drop loot.

  • Increased enemy damage

  • Decreased Stun Baton damage

  • Increased enemy mutation speed

  • Contraband value is reduced

  • Hardcore Mode New Game+ (requires completion of standard Hardcore Mode playthrough)

  • New Achievements / Trophies to hunt


  • Players that were not correctly granted the “The Protocol is About Life” achievement upon completing the game will be automatically granted the achievement

  • Localization fixes for leveling and VO/subtitle mismatches

  • Optimized enemy combat AI when player is surrounded by multiple enemies

Steam Deck

  • Updated font rendering and UI elements for readability

  • Created a rendering functionality profile specifically for Steam Deck with the best settings for smooth gameplay

  • Updated control schemes for SteamDeck controls

PC Specific

  • Enabled ray-traced reflections on Xbox Series X.
  • Added PSO caching improvements.
  • Fixed game stuttering and frame ratte drop bugs.
  • Addressed random game crashing issues.
  • Addressed issues related to audio.
  • Performance improvements added.
  • Added gameplay optimizations.
  • Added general stability fixes.
  • Other minor fixes.

Download free The Callisto Protocol update 1.011.000 on PlayStation 5, and Xbox Series X/S.

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