An all-purpose modding tool for Project ZERO / Fatal Frame

ZeroEditor is a unified toolkit for extracting, editing, and rebuilding data for the Project ZERO / Fatal Frame trilogy on PlayStation 2. It provides powerful editors, extractors, and viewers for game files, archives, models, images, audio, and more — all through a user-friendly interface.

ZeroEditor is still in active development and may contain bugs or missing features.

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Features

• Extract and rebuild PS2 ISO images
• Extract and rebuild PK2, PK4, PHF, and PAK archives
• Support for file expansion, automatically resolving offsets and relocations
• TIM2 viewer, exporter, and importer
• STR and BD audio player with export and import support
• ELF editor for modifying enemies, item placement, fog, variables, and more

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Supported Games / Regions / Platforms

Game Title	Regions / Versions	Platform	Supported
Fatal Frame / Project ZERO	EU	PS2	Yes
	US	PS2	Yes
	JP	PS2	Yes
Fatal Frame II / Project ZERO 2	EU	PS2	Yes
	US	PS2	Yes
	JP	PS2	Yes
	Debug	PS2	Yes
	Prototype	PS2	Yes
Fatal Frame III / Project ZERO 3	EU	PS2	Yes
	US	PS2	Untested
	JP	PS2	Untested
	Prototype (Aug)	PS2	Yes
	Prototype (Sep)	PS2	Yes

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How to Extract

1. Open ZeroEditor and select ISO → Extract ISO.
2. Choose the ISO of the game you want to extract.
3. Select the folder where the extracted files will be placed (your working folder).
4. After extraction completes, browse and edit files under the bin panel on the left side.

How to Rebuild

1. Open ZeroEditor and select ISO → Rebuild ISO.
2. Select your working folder (the one containing _manifest.json).
3. Choose a name for the rebuilt ISO (default: FatalFrame_rebuilt.iso).
4. If prompted, select the original/base ISO.
5. Wait for the rebuild to complete.

Rebuilt ISOs have currently only been tested in PCSX2.

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Special Thanks

• @wagrenier — Research, documentation, and reverse engineering
• @weirdbeardgame — Research, documentation, and reverse engineering