funman300 6ddd5e9d47 fifa17-recon: offline FUT squad-shell working + full card-system RE
Milestone: FIFA 17 Ultimate Team boots end-to-end on our offline backend
past every EA gate into the hub and a live Squads editor (correct 4-4-2,
5-star squad, no freezes).

Key findings this session:
- userMassInfo MUST stay {} (any content desyncs the massinfo parser
  0x180174630 -> tokenizer busy-loop freeze). Deliver the squad via
  GET /squad/0 (fetched on Squads-tab entry) instead.
- Player cards render generic because the card view-model (0x1800d7920)
  reads identity/rating/face from a resolved record at item+0x10, filled
  by a lookup (0x18011cca0) in the FUT item-definition std::map at
  CardsDb+0x160c0 -- which is EMPTY offline -> default blank record.
- Version advertising (itemDbVersion/checkServerDbVersion) is proven inert
  (JSON fields routed to the skip handler). Owned items don't auto-trigger
  a definition fetch. In-place map overwrite is dead (map stays empty).
- Definition-serving endpoints (item/resource, defid, item?idList) built +
  ready; the fetch trigger lives in the packed FIFA17.exe.

New: docs/CARD_SYSTEM.md (findings + ordered next-steps plan for real
player cards: patch-POC, dbdata extractor, drive FIFA17.exe fetch, or
live-memory store injection). Plus tools: fut_seed.py (squad ladder +
definition serving), fifadrive.sh, vgamepad.py, and the login-RE toolset.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PN5bmpDVQR1aXgefyWAt7o
2026-08-01 20:24:30 -07:00

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.

S
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