OpenFUT Agent
6926bb9528
economy_differential.rs boots the REAL Python oracle (fifa17-recon/tools/ utas_server.py) as an isolated subprocess (env FUT_PROFILE/FUT_ACCOUNT_PATH/ FUT_PORT into a temp dir + loopback port; no production container/port/save; killed on Drop) AND the real Rust stack (seeded in-process Core + a real Server with EconomyServices), seeds a semantically-aligned fixture on both, and drives 16 ops through the REAL surfaces (oracle over HTTP; Rust via Server::try_handle_economy on the off-runtime thread). Result: 15 PARITY, 1 DIFFERENT-BY-DESIGN. - PARITY: credits, userMassInfo economy, purchasegroup (pack70/sentinel/clean-v1 incl. the real SessionStore capability handshake), Store BUY, POST /purchased open, GET /purchased reveal (VERIFIED: durable single-profile purchased pile on BOTH — the hypothesised per-SID cache does NOT exist, so PARITY not DIFFERENT-BY-DESIGN), quick-sell (both forms), move, match WIN (+400 byte shape), market list/query/cancel. - DIFFERENT-BY-DESIGN: market second-buy. First buy debits buyNowPrice + closes on both. Rust's MarketStore is a crash-consistent single-debit ledger (second buy of a sold listing = no-op, pinned by assertion); the oracle's buyable market is a stateless PACK_POOL sample that re-debits on repeat. Compat impact NONE (buy-now is one-shot); Rust is a strict correctness improvement. No Python source changes; no classifier changes. Deterministic (3 runs).
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.