Bloodborne V109 Dlc Mods | Cusa00900 Upd

Title: Preserving the Hunt: A Technical Analysis of Modding Bloodborne DLC (CUSA00900) on Patch 1.09

Abstract

This paper explores the technical landscape of modifying the PlayStation 4 exclusive title Bloodborne, specifically targeting the "Old Hunters" DLC within the European release (CUSA00900) running on update version 1.09. As the modding community utilizes specific firmware vulnerabilities, the 1.09 update represents a critical juncture for user-generated content. This document details the file structure of the DLC, the necessary tools for extraction and injection, the importance of game archives (.dcx and .bdt), and the stability considerations when modifying a closed console environment.

1. Introduction

Bloodborne, developed by FromSoftware, remains a culturally significant title in the "Soulsborne" genre. Unlike its PC counterparts, Bloodborne has no official modding tools or support from the developers. However, the community has reverse-engineered the game's file structure, allowing for modifications ranging from texture swaps to gameplay overhauls. The European release (CUSA00900) is often targeted due to its widespread availability, while the 1.09 update (subsequently patched by 1.10 and 1.11) remains a specific point of interest for modders utilizing exploited consoles. This paper outlines the methodology for modding the DLC assets within this specific environment. bloodborne v109 dlc mods cusa00900 upd

2. Technical Prerequisites

Modifying Bloodborne on PS4 hardware requires a specific environment not found on standard retail consoles.

• Jailbroken PS4: The console must be on a firmware version compatible with the PS4 Hen exploit (historically, firmware 5.05 or 6.72 were popular, though later exploits exist). The "v109" in the query suggests a preference for the game version compatible with older, more stable exploits.
• FTP Transfer: File transfer is typically conducted via FTP (File Transfer Protocol) between a PC and the PS4 to dump and re-inject game files.
• Community Tools: Essential software includes:
  • WitchyBND or UXM: For unpacking game archives.
  • Yabber: For decrypting and unpacking DCX files.
  • DSMapStudio: A community-built level editor/map viewer (with experimental Bloodborne support).

3. File Structure and DLC Integration

Bloodborne organizes its data into a series of archives. Understanding this structure is vital for isolating DLC content. Title: Preserving the Hunt: A Technical Analysis of

• The Data0 File: The base game logic and assets are primarily housed in Data0.bdt and Data0.bhd.
• The DLC Archives: The "Old Hunters" content is located in specific archives, usually named DLC1.bdt and DLC1.bhd.
• Update Files (1.09): The patch data is stored in `patch_001.cpk

Part 3: Step-by-Step Installation Guide for PS4 (FW 9.00)

Disclaimer: This requires a jailbroken PS4 on firmware 9.00 or lower. Do not attempt on a retail console.

You will need:

• A PS4 with GoldHen 2.3+
• Bloodborne CUSA00900 Base Game + Update 1.09 + DLC license
• FTP client (FileZilla) or a USB drive

Step 1: Dump your Base Game

• Use PS4-Xplorer to decrypt your CUSA00900 base game to a USB drive. This takes ~30 minutes.

Step 2: Apply the Update (v1.09)

• You can merge the 1.09 patch files or use a pre-patched .pkg. Ensure the update is specifically CUSA00900-update1.09.pkg.

Step 3: Locate the eboot.bin

• The modded files go into: /user/app/CUSA00900/
• The main executable is eboot.bin (or bloodborne.exe on shadPS4). Backup this file.

Step 4: Install Mods

• For SFX/Texture mods: Extract the map folder to CUSA00900/map (overwrite).
• For EBOOT mods (60 FPS): Replace the eboot.bin with the modded version.
• For Param mods: Replace data/common/param files.

Step 5: Merge the DLC

• Your CUSA00900 folder must contain the addcont folder for The Old Hunters. If mods reference DLC files (e.g., dlc/map/M30), you will crash if this is missing.

4. Randomizer 2.0 (v1.09 DLC Aware)

• What it does : Randomizes items, enemy placements, and boss drops—including Laurence and Orphan of Kos.
• Note : Use the CUSA00900 version of the randomizer script. The older European version will crash on DLC elevators.

1. 60 FPS Patch (Illy’s v1.09 Build)

• What it does : Unlocks frame rate, fixes physics bugs (no ladder slide glitch), reduces input lag.
• Install : Replace eboot.bin using FTP or use a pre-made 60fps.pkg for CUSA00900 v1.09.
• DLC note : Works perfectly in Fishing Hamlet’s rain effects.

3.3. Save File Editing (Save Wizard)

• Mechanism: Third-party tools (Save Wizard, BruteForce) are used to decrypt saves, edit character stats, inventory items (adding +10 Blood Gems), and re-encrypt them.
• Risk: High. Modded saves used online often result in soft-bans (Invalid Game Data warnings).

8. Compatibility Notes

• Mods made for CUSA00900 will not work on CUSA00207 (EU) or CUSA03023 (JP) without manual file path conversion.
• Always verify mods are built for patch 1.09 – older 1.04 or 1.06 mods may crash the game or break DLC access.
• The Old Hunters DLC requires the DLC unlock PKG to be installed – mods do not replace the license requirement unless a “fake” unlock PKG is used (not recommended for stability).