funman300
a57f4930f0
Single-field protocol-correctness fix, deployed as a candidate for a live A/B. `itemData.itemState: "listFS"` on the seller's own auction rows is not a FIFA 17 token at all: zero occurrences in `CardsDLL_Win64_retail.dll` (md5 4de3493131d7d2ff7f8b360c5ac9b655), zero in 4.26 GiB of live client memory, and it decodes to -1 through `FUN_180166660` — so the client was handed an unrecognised `CARD_OFFERSTATE`. FIFA 17's value for an item offered for sale is `forSale` (5), from the 12-row table at 0x180229cc0. Changed only where the invalid token was emitted: `handle_market_query` (GET …/tradePile) and `handle_market_status` (GET …/trade/status). The market search path already emitted `forSale` and is untouched — which is also why the risk here was lower than it looked: the client has been decoding `forSale` on a live route all along, and only the seller's own pile carried the bad value. Wire A/B on the same expired row: EXACTLY one field differs. tradeId, tradeState, expires, startingBid, buyNowPrice, currentBid, bidState, sellerName, sellerEstablished, watched, coinsProcessed, the twelve-atom count and the whole itemData card are byte-identical; coins unchanged at 29,843,976; Fix A's zero `inactive` rows intact. The differential asserted PARITY on this field and therefore passed while BOTH sides were wrong — the exact mechanism by which the defect survived every run. `market query tradePile` is now DIFFERENT-BY-DESIGN, pinning oracle == "listFS" and rust == "forSale" so the divergence cannot silently close again. Where the FIFA 17 binary contradicts the Python oracle, the binary wins. Gates: 126 host tests, 214 adapter tests, fmt clean, clippy clean. NOT claimed: that this preserves the list -> expire -> Return-to-Club lifecycle. That needs an operator FIFA 17 session and has NOT been observed yet. Also not claimed: anything about the Flash action gate — `CARD_OFFERSTATE` is one of three still-confounded candidates and this change does not test it. Revert is one line if the live test fails.
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.