服務功能 / Service Overview
- Google 帳號登入與決鬥者身分識別。
- 建立、加入、管理約戰房間。
- 競技模式、淘汰賽對陣與對戰結果回報。
- 會員權益（去廣告、決鬥者 Plus）狀態同步。
One Match provides authentication, matchmaking rooms, tournament brackets, and membership entitlement syncing.
決鬥者城市 / One Match
一站式遊戲約戰平台 | Game matchmaking platform
by GameWorld App Studio
Official App Homepage for One Match (決鬥者城市)
App Function: Create duel rooms, join matches, and manage tournament battles.
Data Usage: Google account data is used only for authentication and core matchmaking features.
Privacy Policy: https://gameworldappstudio.com/duelcity/privacy.html
Terms of Use (EULA): https://gameworldappstudio.com/duelcity/terms.html
線下安全 / Offline Safety
本平台只提供約戰資訊媒合，無法驗證每位用戶的線下意圖。請在公開場所見面，勿輕易匯款或分享敏感個資。 遇可疑房間、廣告或詐騙，請來信 gameworldappstudio@gmail.com。
Duel City is matchmaking only. Meet in public places and report suspicious rooms to our support email. See the full safety guide on our website.
資料用途 / Data Usage
我們透過 Google OAuth 取得必要登入識別資訊（如顯示名稱、電子郵件、帳號識別）以提供登入、帳戶建立與核心約戰功能。
Google account information is used only for sign-in, account identity, and core matchmaking features.