Decomp Ledger

PlayStation 2 · 2004

Gran Turismo 4

One tracked project, with 83.5% of code matched.

Developer
Polyphony Digital
Publisher
Sony Computer Entertainment
Released
2004
Series
Gran Turismo
Genre
Racing
Also known as
GT4

gt4-decomp

In progressVerified
83.55%Code matched
2.13%Data matched

Source: decomp.dev (SCUS-97328), measured 19 Oct 2026.

gt4-decomp: code and data progress over timeCode progress went from 37.1% on 2026-10-09 to 83.5% on 2026-10-20.0%50%100%Oct 2026Oct 2026Oct 2026Oct 2026Oct 2026
Show the data as a table
gt4-decomp: code and data progress over time, last value of each month
MonthCodeData
Oct 202683.55%2.13%

Build-time check on 2026-10-20: public repository, progress measured from decomp.dev (SCUS-97328).

Platform
PlayStation 2
Approach
Matching decompilation
Status
In progress
Licence
MIT
Last commit
19 Oct 2026 (today)
Stars
65
Contributors
7

Repositories

  • github.com/gustavocanepa/gt4-decomp

    Matching decompilation of the Gran Turismo 4 (PS2) engine, AI-assisted. No game data included.

    Stars
    65
    Last push
    19 Oct 2026
    Contributors
    7
    State
    Active

PS2 C or C++ that compiles to the exact original machine code with the original compiler.

More on the PlayStation 2 and in the Gran Turismo series.