PHASE A settled the token from the CLIENT ITSELF, so this is not a guessed enum.
vocab_dump.py (new; static, read-only, VA->offset through the real PE section table)
dumps CardsDLL's NULL-terminated {const char*, int} vocabularies. The tradeState
table at 0x180229e40 reads exactly:
'active' = 1 'inactive' = 2 'expired' = 3 'closed' = 4
The sibling tables (type/zone/lev/pos) match the corpus verbatim, which validates the
dumper. So "inactive" is a token the client's own parser decodes.
PHASE B, bounded as instructed. `OPENFUT_FIFA17_UNLISTED_PROBE=<wire id>` exposes
EXACTLY ONE unlisted trade-pile item on /tradePile as a non-active record; unset,
behaviour is byte-identical to before. The other stranded pile items are untouched --
no bulk migration.
Why this shape is forced rather than chosen: the route table has exactly one
trade-pile route, it carries only twelve-atom auction records, `pile` (0x226) has no
deserializer arm so membership comes from the owning list, and of those atoms only
tradeState expresses lifecycle. The row carries tradeState "inactive" with
expires/prices/bid all zero so it cannot render a countdown or a price, and reuses the
item's stable tradeId because the client keys its record store on tradeId and
re-parents itemData -- so listing the item later UPDATES the row instead of leaving a
duplicate ghost.
Both preconditions are re-checked at response time: the item must actually be in the
`trade` pile, and it must not already own a listing. Two tests cover exactly those.
counts semantics deliberately unchanged -- the inactive row is not counted.
340 tests pass, 0 failed, clippy clean. Deployed; the wire now carries all three
lifecycle states at once (expired 1000000097, active 1000000155, inactive 1000000059)
and that body is preserved as a fixture.
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.