funman300 1aa84afa9a feat(host): migrate item-defs + marketdata UTAS reads to Rust
Two more real client-hit reads move off the Python proxy:

- GET /item/resource, /defid (Route::ItemDefs): build {itemData:[item_def…]}
  for every >=3-digit id in the query, replicating the oracle's item_def
  (assetId = resourceId & 0xffffff; hardcoded Ronaldo asset 20801 + a generic
  "Player" 75 CM placeholder). The client renders the real card from its local
  DB, so the placeholder is exact parity.
- GET /marketdata (+ /marketdata/pricelimits) (Route::MarketData): suggested
  pricing, constant band 150..15000. /pricelimits returns a BARE ARRAY (one
  {defId,minPrice,maxPrice} per queried defId); plain /marketdata returns an
  OBJECT {minPrice,maxPrice}. The container type is load-bearing — object-where-
  array froze a live client at the listing screen, so the handler picks it from
  the path.

Adds extract_long_ints / extract_defid_param query parsers, shape+parser unit
tests (incl. the freeze-critical container-type assertions), and classify-table
coverage. Deployed to prod-host 2026-08-17; verified owner=RUST 200 for all four
(Ronaldo/placeholder resolve, pricelimits=array, marketdata=object).

Docs: PRODUCTION_AUTHORITY_MATRIX + PYTHON_RETIREMENT_PLAN updated. Remaining
Python tail is now only mutation (user/club), no-Core-model (squad/<n>), and
unimplemented modes (draft/leaderboards/sbs).
2026-08-17 16:21:17 +00:00

OpenFUT

Offline Ultimate Team — like SPT, but for FIFA 23.

OpenFUT replaces EA's retired FUT servers with a fully offline, single-player backend. You own FIFA 23 legitimately. You just want to keep playing after EA shut down the servers.


Repositories

Repo Purpose
openfut-core Game-independent offline FUT backend
openfut-bridge FIFA 23 integration layer + reverse-engineering proxy

Architecture

FIFA 23 client
      │
      ▼
┌─────────────────┐
│  openfut-bridge │  ← intercepts FUT traffic, maps routes, logs unknown
└────────┬────────┘
         │
         ▼
┌─────────────────┐
│  openfut-core   │  ← offline FUT backend: profiles, packs, squads, SBCs
└─────────────────┘
         │
         ▼
   SQLite database

Core is game-independent. It speaks a clean REST API and knows nothing about FIFA 23 internals.

Bridge is FIFA-specific. It speaks FIFA 23's wire protocol and translates it into Core API calls. Bridge is where all reverse engineering work happens.


Current Status

Feature Status
Local profiles + clubs Working
Coin system Working
Pack generator Working
Card collection Working
Squad builder Working
Objectives engine Working
SBC engine Working
Match rewards Working
NPC transfer market Working
Statistics Working
FIFA 23 integration 🔴 Reverse engineering in progress
Chemistry calculation 🟡 In progress
Full Draft mode 🟡 In progress
Squad Battles AI generator 🟡 In progress
Objectives claim flow 🟡 In progress

Running

# Start the offline backend
cd openfut-core
cargo run

# Start the proxy (for traffic capture / FIFA integration)
cd openfut-bridge
cargo run

Core listens on http://127.0.0.1:8080 by default. Bridge listens on http://127.0.0.1:8443 by default.


Design Principles

  • Offline-first. No EA account required. No internet connection needed.
  • Single-player only. This is not a multiplayer server emulator.
  • Data-driven. All cards, packs, SBCs, and objectives are JSON files. Everything is moddable.
  • Clean architecture. Core has zero knowledge of FIFA 23. Bridge has zero game logic.
  • No copyrighted assets. No real player images, no EA trademarks in data files.

Disclaimer

This project is not affiliated with EA Sports. You must own FIFA 23 legitimately to use this software. This project does not bypass any ownership verification and is intended only to restore offline playability of a game whose online services have been retired.

S
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