Single-player Seasons failed with "There was a problem communicating with the
FIFA Ultimate Team Servers". Two independent faults, both fixed:
1. The client never reached a season endpoint at all. It aborts on a
prerequisite web file, captured live by the deployed trace:
SEASONS_WEBFILE_URL: url="packs/loc/storepackdescriptions.en_us.xml"
SEASONS_STAGE1: status(+0x1c)=999 -> CACHE_PACKNAMES_FAILED
That is the hook's side (launcher 5294f58): the CDN base is empty in the
emulator, so the url stays relative and never reaches the POW content server
on 8085 that actually serves it.
2. `season/list` and `season/user` were not served. Only the EXACT tail
"season" was classified (as FeatureOffEmpty); every sub-path fell through to
Passthrough — the deliberately-dead Python upstream — so the mode could not
have worked even once the web file resolved.
Adds `fut::season_wire` with the reversed element schema (parser FUN_180167740,
stride 0x318; matches elements via FUN_180167fb0) and a `Route::Season` owning
`season…` for GET plus the state-storing PUT. Anything else still proxies rather
than being claimed without evidence.
Two things the types encode because getting them wrong is fatal:
* `matches` is NEVER empty. StartSeason (FUN_1800fc500) indexes
`matches[*(x+0x70)].teamId` off `elem+0x2e8`; an empty vector makes that a
NULL dereference and the client dies at CardsDLL+0xfc5b5. A full ten-round
schedule is emitted, with opponents drawn from team ids observed in this
client's own database.
* `type` MUST serialise before `divisionId`. `serde_json::Value` is a BTreeMap
here (no preserve_order), so `json!` sorts keys ALPHABETICALLY and emitted
divisionId first — caught by a test written for exactly this. The wire shapes
are therefore `#[derive(Serialize)]` structs (declaration order) rendered
straight to text via a new `json_text_status`, never round-tripped through
Value.
Verified on staging: season/list returns the ten-round OFFLINE season with
type before divisionId, season/user the round-1 position, history an empty
list, and the bare tail still {}.
Season progress is not yet persisted: the state-storing PUT is acknowledged
with {} (what the retail wire answers) rather than pretending a round advanced.
OpenFUT
⚠️ Status — see
docs/PROJECT_STATE.md(canonical). The working, actively-developed target is FIFA 17, not FIFA 23. Everything below this banner describes the superseded FIFA 23bridgelineage and is kept for historical context.Run the server (canonical):
cd fifa17-recon/docker/fifa17-python && docker compose up -d— seefifa17-recon/FUT-RUNBOOK.md.openfut-coreis the shared offline backend (still used by the FIFA 17 path);openfut-bridgeis the retired FIFA 23 integration.
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.