Konami has officially deployed Metal Gear Solid Peace Walker Update 1.3.1 (identified as version 1.300.100 on modern consoles) to address technical hurdles within the Master Collection version. This update, which arrived on September 2, 2026, is a key fix for the game since its inclusion in the Metal Gear Solid Master Collection Vol. 2 Official Site. While previous versions focused on initial stability, this patch targets specific mechanical issues identified by players since the collection’s late August debut.

Resolving the Extra Op 58 Camera Progression Bug

One of the most significant fixes in this update addresses a camera-related progression error. Players reported a bug during missions like Extra Op 58 where the HUD would break or the game would hang after using the Camera item. This often caused players to lose progress right at the end of a mission. According to the patch notes, this issue is now fully resolved. The developers did note that in-game pictures can only be saved to your system if the Steam Overlay is active in your user settings. This is a vital detail for those looking to archive their tactical espionage photography.

Addressing Mouse Polling Rates and Input Lag

For PC players, the experience has been improved with a fix for keyboard and mouse control setups. Before this update, many users reported that mouse sensitivity felt sluggish or unresponsive. The team found that this was tied to high polling rates; specifically, gaming mice set to 500Hz or 1000Hz experienced heavy input lag. Konami had previously suggested limiting polling rates to 125Hz. With the release of version 1.300.100, this is no longer necessary. Just as the Reanimal Update 1.000.012 Patch Notes: HDR10+ & PC Fixes addressed platform-bound performance issues, this patch allows Peace Walker players to use their hardware’s standard high polling values without lag.

These technical refinements mirror the maintenance found in other legacy titles, such as the Black Ops 2 Update 1.009 Patch Notes: Security & PS5 Fixes, where modern hardware compatibility is the main focus of post-launch support.

Storage Expansion and High-Resolution Assets

A notable change in this update cycle is the increase in required storage space. Metal Gear Solid Peace Walker’s footprint has grown from 8GB to 21GB. This 13GB increase comes from the integration of uncompressed audio assets and higher-resolution texture packs. These assets were previously limited to specific beta branches but are now part of the main build for all users on PC, PS5, Xbox Series X/S, and Nintendo Switch 2. This visual and auditory upgrade is similar to the enhancements detailed in the Skyrim Update 1.001.012 Patch Notes: PS5 & Xbox Series X, which aimed to maximize the capabilities of current-gen hardware.

Global Support and Online Stability

Beyond bug fixes, Konami has expanded accessibility by adding Portuguese (Brazil) to the language list. This is a great addition for the South American community, which has been highly active on the Metal Gear Solid: Peace Walker – Master Collection Version Steam Community Hub. Additionally, the update includes stability improvements for online play. Peace Walker’s co-op and Versus Ops modes, supporting up to six players, should now see fewer disconnections and better matchmaking synchronization. Since this version is based on the HD Collection originally handled by Bluepoint Games, these modern stability patches are vital for keeping the multiplayer components running smoothly on 2026 hardware.