Dynasty Warriors 4 Hyper Save Editor May 2026

Pseudo-code:

Author: [Your Name/Handle] Affiliation: Game Preservation & Modding Research Group Date: [Current Date] Abstract Dynasty Warriors 4 Hyper (2005) is a PC port of the classic PlayStation 2 hack-and-slash game. Unlike its console counterparts, the PC version stores game progress in a proprietary binary save format. This paper presents the design and implementation of a save editor for Dynasty Warriors 4 Hyper , focusing on reverse-engineering the save structure, checksum algorithms, and data encoding. We detail the file format, including offsets for officers, items, weapons, and story progression flags. Additionally, we discuss the tool’s architecture, validation mechanisms, and integrity preservation. The editor enables modification of all in-game parameters without corrupting the save file. Our findings contribute to game modding methodologies and preservation of PC-exclusive game data formats. Dynasty Warriors 4 Hyper Save Editor

The checksum covers bytes 0x0000 to 0x1FFFB , excluding the checksum field itself. The save file is divided into sections. Offsets are hexadecimal. We detail the file format, including offsets for

(full Python script available in supplementary materials). End of paper draft. Our findings contribute to game modding methodologies and

| Offset Range | Length (bytes) | Description | |--------------|----------------|--------------| | 0x0000–0x0003 | 4 | Header identifier ( DW4H ) | | 0x0004–0x0007 | 4 | Save slot number (0–9) | | 0x0008–0x0027 | 32 | Player name (ASCII, null-padded) | | 0x0028–0x002B | 4 | Total play time (seconds, uint32) | | 0x002C–0x003F | 20 | Difficulty and game flags | | 0x0040–0x0FFF | ~4032 | Officer data (44 officers × 92 bytes each) | | 0x1000–0x1FFF | 4096 | Weapon data (max 256 weapons × 16 bytes) | | 0x2000–0x2FFF | 4096 | Item inventory (bitmask + quantities) | | 0x3000–0x3FFF | 4096 | Bodyguard data (8 bodyguards × 512 bytes) | | 0x4000–0x1FFFB | ~114,684 | Stage completion, musou mode flags, unlockables | | 0x1FFFC–0x1FFFF | 4 | Checksum (as above) | Example offset for Shu officer Zhao Yun starts at 0x0040 .