OpenFUT Agent
4d2b8b9be3
Implements the FIFA17 economy WRITER cluster on top of the landed Core
economy authority + host CoreEconomy client + identity/item-shaper infra.
Handlers are pub, unit-tested, and NOT yet routed: classify() and
ROUTE_AUTHORITY are untouched — the classifier barrier is a later single
coherent flip. No stubs; real Core-backed behavior; fail-closed on CoreError.
Pack generator (adapter fut/pack_content.rs):
generate_pack_contents(&PackDef, &mut impl Rng, &[GeneratedCandidate])
-> Vec<GeneratedCard>. Pure, seeded (deterministic), gold-tier split +
special_chance gate as documented OPENFUT PLACEHOLDER policy (Python
open_pack/_pack_body parity note inline). Fail-closed empty on empty pool.
Store/item writers (host economy_store.rs), matching oracle wire shapes:
- handle_store_buy PUT /store/transaction -> purchase_items (debit+mint N)
-> createPackResponse; cancel/unknown/owned_only -> 200 {}; insufficient
-> 461 {reason,credits}; CoreError -> 503.
- handle_pack_open POST /purchased -> owned_only consumes the unopened
entitlement (redeem_entitlement, consume-once); normal packs debit+mint.
- handle_quick_sell{_path,_body} DELETE .../item/<id> + POST /ut/delete/.../item
-> reverse-resolve wire->Core id (SquadWireResolver) -> sell_item ->
{items:[{id}],totalCredits}; not-owned skipped.
Production OwnedItemLookup = CoreItemLookup over CoreAccess.
Market (host market_store.rs / pile_store.rs / market.rs), synthetic-seller:
- MarketStore over sqlx SQLite (WAL-once + busy_timeout=5s + BEGIN IMMEDIATE
for writes, mirroring openfut-core::db). listings(active/reserved/sold/
cancelled), owner-checked cancel, CAS reserve/complete_sale/rollback.
Typed errors NotFound/Sold/Cancelled/WrongOwner/Conflict.
- PileStore: durable pile/location metadata keyed by Core item id.
- handle_market_{list,query,cancel,buy} + handle_move_items. Buy-now =
reserve (CAS) -> balance precheck (461) -> Core purchase_item (mint+debit)
-> complete_sale; any Core failure rolls the reservation back active.
Two concurrent buyers -> exactly one sale + one debit.
Deps (additive): rand 0.8 (adapter+host), sqlx 0.7 sqlite/runtime-tokio (host).
Tests: adapter +7 (pack_content), host +43 (economy_store 20, market/store 23
incl two_reservers_exactly_one_wins, two_buyers_exactly_one_sale_one_debit,
state_survives_reopen, move_persists_across_reopen). All green; clippy
-D warnings clean; rustfmt clean.
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.