PSX · SCUS-94254 · 1998

Legend of Legaia, taken apart and running again.

A 1998 PlayStation RPG reverse-engineered end to end — play the clean-room engine port, browse everything on the disc, and read how it all works. All in your browser.

Zero Sony bytes shipped — bring your own disc

Play in your browser Browse the disc Read the docs →

2-minute demo — the engine running real scenes

Insert your disc image — pick your .bin once and every page on this site reads from it.Read locally, cached in this browser, shared across pages. Nothing is ever uploaded.

99.8%

of the executable's code decompiled

99.5%

of disc bytes resolve to a documented format

840

retail functions ported to clean-room Rust

82.4%

of ported code wired into the live engine

How these are measured →

Play

2 tools

The engine rendering Rim Elm - Vahn near the windmills

The name-entry screen

The opening prologue

Play the port

The clean-room engine running the real game — flat or in VR.

Noa's dance minigame

The casino slot machine

The fishing minigame

Minigames & Sol Tower

Slots, Noa's dance, Baka Fighter — playable with retail data.

Modding

1 tool

Randomizer options: drops, chests, and shops set to shuffle or randomize

ROM patcher (randomizer)

Randomize drops, encounters, chests, shops, doors, arts combos, and code-injected extras like the in-shop Seru-trading vendor. Outputs a patched image — nothing is uploaded.

Browse the disc

9 tools

The TIM texture catalog decoded from the disc

Asset viewer

Every 3D mesh and texture on the disc, grouped by scene.

The sound-test track list with play controls

Media browser

All the music, sound banks, FMVs, and voice audio.

Vidna assembled in 3D

Game world

Every town and dungeon assembled in 3D, with enemy rosters.

A kingdom's overworld rendered in WebGL

World overview

Each kingdom's overworld in real-time WebGL.

A party battle model

Characters

Vahn, Noa, and Gala — field and battle forms, animated.

A townsperson model

NPCs

Every townsperson in 3D, posed straight from your disc.

An enemy battle model

Enemy table

Stats, drops, steals — click a row to spin the 3D model.

A vendor's priced inventory

Shops & vendors

Every shop's priced inventory, town by town.

Vahn's battle model mid-art

Tactical Arts

Inputs, AP costs — each art performed by the battle model.

A summoned Ra-Seru body mid-cast

Seru Magic & Summons

Every cast animated, and the seven Ra-Seru bodies in 3D.

Stories from the dig

write-ups

Patching a sealed disc

Modding a retail CD with no source and no SDK — a six-tier ladder from byte edits to hand-assembled MIPS hosted in an overlay's dead space.

The endless orbit

A softlock 27 years old: why one Gaza Valley fight never ends, and the two-byte fix.

The Spirit fish gate

The fish that couldn't be caught — tracing a minigame gate nobody understood.

Read how it works

docs zone

Start here: how the game is put together

The layer diagram from raw sectors to runtime VMs — disc → ISO9660 → PROT.DAT → containers → formats → engine.

Architecture →

Subsystems

Boot path, asset loader, the five runtime VMs, renderer, audio, battle, world map, save / shop / inn / level-up.

Formats

Byte-level specs for everything on the disc — each traced to a Ghidra function dump.

Guides, tooling & reference

Build the workspace, extract assets, mod and translate. Reference — RAM map, function directory, game-data tables.