autopatch side of the verified patched-client capability handshake: prove, at
runtime, that the empty-My-Packs resolver guard is active for a specific FIFA
process, and advertise it once on stdout for the launcher to relay.
- Add a per-pid guard verification state derived by a pure, testable
guard_state_after(cur_before, orig, patch, wrote_ok, cur_after) returning one
of VERIFIED / UNSUPPORTED_BUILD / WRITE_FAILED / VERIFY_FAILED (NOT_ATTEMPTED
is the pre-evaluation constant). VERIFIED means the live bytes at RVA 0x14858
are 7f 0f (JG) after enforcement (from an applied 75 0f->7f 0f, or already
patched). The existing fail-closed byte guard (guarded_action / STORE_PATCHES_
GUARDED) is unchanged — this only observes the outcome.
- Emit exactly once per FIFA pid: on VERIFIED,
[store-guard] verified capability fifa17.empty_mypacks_resolver=1 fifa_pid=<pid>
otherwise a non-advertising
[store-guard] guard status=<STATE> fifa_pid=<pid> (no capability advertised)
- Capability constants: EMPTY_MYPACKS_RESOLVER_VERSION=1, fully-qualified name
"fifa17.empty_mypacks_resolver".
- Tests: 5 guard-state cases + capability-constant assertions (standalone-runnable).
The capability = "the guard was verified in THIS FIFA process", never merely
"the code is present". Design: docs/plans/FIFA17_PATCHED_CLIENT_CAPABILITY.md.
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.