During the Rust production cutover four stale openfut-switch nft rules were
still redirecting production-facing traffic to staging (42127->42227,
8081->8281, 8094->18094, 8099->18106). They matched `ip daddr 10.10.0.120`, so
every server-side probe via 127.0.0.1 or the container IP passed while the
CLIENT was refused. That cost a full false-negative acceptance round: a retail
quick-sell landed on staging while production sat untouched, and the launcher
reported the server "not answering".
The failure mode is mechanical, so the check is:
* openfut-switch.sh status
* nft rules on OpenFUT ports, split into REDIRECT (interception) and DNAT
(docker publishing, expected -- reporting those as problems would train the
reader to ignore the tool)
* the actual point: loopback vs the ADVERTISED address per port. A redirect
keyed on the LAN IP is invisible to loopback, which is exactly why the
cutover probes all passed.
Verdict is CLEAN / INTERCEPTION_PRESENT with exit 0/1/2. Both branches
observed: it reports CLEAN now, and reported INTERCEPTION_PRESENT on a
loopback/advertised disagreement before :4216 was excluded.
:4216 is excluded from the verdict because LSX runs on the game machine --
compose publishes the port but OPENFUT_SERVERS omits lsx, so "published but not
served" is its normal state. It is still printed, marked as expected.
READ-ONLY by design: it never deletes a rule. Clearing interception stays a
deliberate operator act via `openfut-switch.sh off --name <id>`.
Run before production acceptance, client repoints, migrations and retail
protocol tests.
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 Everything below this banner describes the superseded FIFA 23bridgelineage and is kept for historical context.Run the server (canonical):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.