# Xeeynamo/sotn-decomp

Decompilation of Castlevania: Symphony of the Night (PSX, PSP, Saturn)

Repository: https://github.com/Xeeynamo/sotn-decomp
Canonical: https://ross.abutalabs.com/products/sotn-decomp
Homepage: https://sotn.xee.dev/
Language: C
License: AGPL-3.0
License Family: copyleft
Topics: game, decompilation
Last push: 2026-09-02T01:21:55+00:00

## Health v2 (maintenance only)
Score: 68/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 100, release rhythm 8, longevity 100
- inputs: {"age_days": 1713, "days_push": 1, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: none
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1062, forks 95 (observed 2026-09-03T02:15:08.607672+00:00)

## What it is
A matching decompilation project recreating the C source code of Castlevania: Symphony of the Night from its original binaries for PS1, PSP, and Saturn. The reconstructed code compiles byte-for-byte to the same binaries, requiring a prior copy of the game for asset extraction.

## Use cases
- decompile Symphony of the Night to readable C source
- build a byte-for-byte matching SOTN binary
- study how a PS1 Metroidvania was originally programmed
- port or mod SOTN using reconstructed source
- contribute to a community game decompilation project

## When to choose
- you want readable C source for SOTN or to make mods/ports
- you need a matching decompilation verified byte-for-byte against original binaries
- you want to join an active decompilation community with multiple supported game versions

## When to avoid
- you just want to play the game - this provides no assets or runnable build without an original copy
- you need a complete decompilation - the project is still work-in-progress
- you are decompiling a different game or platform

## Facets
- artifact type: application
- maturity: active
- function: reverse-engineering, compiler, developer-tools
- domain: reverse-engineering, gaming-tools
- platform: windows, cpp, c
- tags: decompilation, matching-decomp, playstation, psx, sega-saturn, psp, mips, retro-gaming, castlevania, static-analysis, game-development, linux, macos

## Member repositories
- Xeeynamo/sotn-decomp (main) score 68

## Provenance
- Observed fields: from GitHub, fetched 2026-09-03T02:15:08.607672+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T06:58:46.382045+00:00, confidence not recorded.
  - readme: https://github.com/Xeeynamo/sotn-decomp (fetched 2026-09-03T02:15:08.607672+00:00, sha 9eb381e6dacd)
  - homepage: https://sotn.xee.dev/ (fetched 2026-08-29T13:00:19.196687+00:00, sha e0c00cb044c1)
- Data as of 2026-08-30T08:39:29.467469+00:00.