# Fluorohydride/ygopro

A script engine for "yu-gi-oh!" and sample gui

Repository: https://github.com/Fluorohydride/ygopro
Canonical: https://ross.abutalabs.com/products/ygopro
Language: C++
License: GPL-2.0
License Family: copyleft
Last push: 2026-08-24T13:49:57+00:00

## Health v2 (maintenance only)
Score: 77/100 (v2, computed 2026-09-02T17:46:02.011165+00:00)
- activity 99, release rhythm 35, longevity 100
- inputs: {"age_days": 5390, "days_push": 9, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 2050, forks 649 (observed 2026-08-28T04:06:09.123880+00:00)

## What it is
YGOPro is a script engine for the Yu-Gi-Oh! trading card game with a sample GUI, written in C++. It lets players duel each other over LAN or online, edit decks, and watch replays, with card effects implemented via Lua scripts.

## Use cases
- play Yu-Gi-Oh! duels against other players online
- host or join LAN duels with custom passwords and ports
- build and edit Yu-Gi-Oh! decks with card search and filters
- watch and load duel replays (.yrp files)
- run single-mode puzzle scenarios written in Lua scripts
- load custom card databases (.cdb) for fan-made cards

## When to choose
- you want a free, scriptable Yu-Gi-Oh! simulator with multiplayer support
- you need a duel engine that launchers or bots can drive via command-line options
- you want to test custom cards or puzzles using Lua scripts and extra databases

## When to avoid
- you want an official, licensed Yu-Gi-Oh! product with ranked matchmaking
- you need a polished modern UI or mobile app experience
- you are not comfortable assembling card databases, scripts, and images yourself

## Facets
- artifact type: application
- maturity: active
- function: game-engine, interpreter, gui
- domain: gaming-tools
- platform: windows, cross-platform
- tags: yugioh, card-game, duel-simulator, lua-scripting, open-source-game, game-development, linux, macos

## Member repositories
- Fluorohydride/ygopro (main) score 77

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:06:09.123880+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T02:57:34.366949+00:00, confidence not recorded.
  - readme: https://github.com/Fluorohydride/ygopro (fetched 2026-08-28T04:06:09.123880+00:00, sha 175ba57c8cda)
- Data as of 2026-08-30T08:39:29.467469+00:00.