Sunwin presents itself as an online gaming and casino-style entertainment brand, also referred to as Sun Win and Sunwin20. Its website promotes access through Android and iOS apps as well as browser-based play, and provides instructions for downloading and installing its games. The advertised catalogue includes traditional Vietnamese card games such as Tiến lên, Phỏm and Mậu binh; international casino games including poker, blackjack and baccarat; and options such as Tài Xỉu, Xóc Đĩa, fishing games and slot-style games.

The site also highlights mobile access, game updates, promotional codes, leaderboards and live-style activity displays. It describes features including encrypted user data, automated transactions and deposits or withdrawals through local payment services and USDT, though these are claims made by the website. The scraped content identifies Sunwin Gaming Ltd and Sunwin LLC as associated entities, but provides no independent verification.

It also labels its games as entertainment that does not pay prizes, which contrasts with other promotional claims about winnings and rewards