Preserve
Secure acquisition, clean imaging, and bit-perfect verification of discs, carts, and development media. Redundant storage with integrity checks.
Checksums KryoFlux / Redump
All generations • All genres
Prelaun.ch
— pixel by pixel, byte by byte.
Our mission is to locate, preserve, and fully restore every known PlayStation prototype: from early tech demos and unreleased builds to debug hardware and marketing discs. We document everything, keep it legal, and share our learnings with the world.
PS1 • PS2 • PS3 • PSP • PS Vita • PS4
Hardware • Software • Marketing
0
Prototypes cataloged
0
Firmwares cataloged
0
Fully restored
2
Community members
Our Mission
We safeguard the history of PlayStation by identifying rare and unreleased materials, verifying their provenance, and restoring them to a usable, documented state while respecting legal and ethical standards.
Restore
Non-destructive repairs for corrupted assets, filesystem rebuilds, and rebuildable SDK projects with reproducible toolchains.
SDK Toolchains Asset RecoveryDocument
Change logs, build diffs, screenshots, timelines, and developer notes, published in a research-friendly format.
Diff Reports MetadataFocus Areas
From tech demos to marketing discs — if it ran on PlayStation, we care about it.
Software Prototypes
Unreleased builds, E3 demos, kiosk discs, debug and review builds across PS1–PS4.
Alpha • Beta • Gold MasterHardware & Devkits
Test units, NPDP/TOOL/DECR/DECHA, early controllers, and engineering samples. Safe teardown + photography.
For ResearchArtifacts & Media
Promo builds, press kits, store assets, and documentation that complete the historical picture.
Context MattersRecent Restorations
A snapshot of work-in-progress and finished restorations. Replace placeholders with your real data as you grow.
PS2 • 2003
Project "Aegis" E3 Demo
Recovered corrupted BGC textures, rebuilt ELF, and restored controller mappings. Verified deterministic build with SDK 2.6 toolchain.
Status: Complete
Playable
PSP • 2006
Kiosk Disc K-214b
Reconstructed UMD LBA order and fixed PMF playback desync. Added full metadata and gallery.
Status: In review
Video OK
PS1 • 1997
Platformer Prototype R7
Disc rot mitigation via multiple reads; combined best sectors. Patched XA audio table and corrected sector EDC/ECC.
Status: Complete
Audio Fixed
Roadmap
Clear, measurable steps to restore every prototype we can ethically source.
Phase 1 — Catalog & Intake
Submit leads, verify provenance, image media, compute hashes, and store with redundancy.
NowOpen
Phase 2 — Toolchains
Rebuild historical SDKs in reproducible containers. Create build scripts and diffable outputs.
Q3In Progress
Phase 3 — Publishing & Docs
Write detailed reports, galleries, and changelogs. Release legal-safe materials and research notes.
Q4Upcoming
Get Involved
There are many ways to help — whether you have hardware to loan, a disc to dump, or skills to contribute.
Submit a Lead
Know about a prototype, devkit, or related material? Share your lead privately. We treat every tip with care.
Submit LeadVolunteer
Help with imaging, reverse engineering, writing, or photography. Beginners welcome — we mentor.
Become a VolunteerSupport
Fund storage, shipping, and preservation equipment. Transparent budget and impact reports.
Support the MissionFAQ
We publish documentation, images, and research notes. Any release of binaries follows a strict legal and ethical review, and may be limited to metadata and diffs only.
Multiple imaging passes, checksum consensus, provenance checks, and build reproducibility. Where possible, we confirm against developer notes and SDK toolchains.
Yes. We support secure shipping/return workflows and provide imaging receipts and reports. Start with a lead submission so we can coordinate safely.
We’re happy to provide quotes and historical context. Contact us with your story angle; we’ll respond with available assets and timelines.