Guandan 掼蛋

Please note: the interface is currently available in Chinese only. An English translation is planned for a future release.

Guandan (掼蛋) is a Chinese climbing card game for four players in two partnerships, played with two decks. Teams start at level 2 and work their way up to Ace, and the red hearts of the current level are wild — they can stand in for any card.

Everything runs on your local Wi-Fi. There is no server, no account, no sign-up and no internet connection: devices find each other over mDNS and talk directly to one another over TCP. Nothing about your game leaves the room.

Features

* Four players in two teams, partners sitting opposite each other
* A full match, not a single deal — both teams climb from level 2 to Ace, and a team wins only by taking first and second place together at Ace
* The current level's red hearts are wild and can stand in for any card
* Cross-platform: Android, iPhone and iPad players can share one table, and either platform can host
* Bots fill any empty seat, so you can start a game on a single device
* Drop out and a bot covers your seat, then hands it back the moment you rejoin — the host also keeps the table alive in the background, and clients reconnect on their own
* A hint button when you are not sure what to play
* Five colour themes, including a light mode, remembered between sessions

All devices need to be on the same Wi-Fi network. Tribute (进贡) is not implemented.

* The store description now states that the interface is Chinese only
* The host runs a foreground service, so the table survives switching apps or an aggressive battery saver
* "Resume last game" on the main menu when the system killed the host mid-match
* Clients reconnect on their own after a drop and reclaim their seat via a persistent local id
* Fixed: some illegal card combinations could be played
* Fixed: a following card was scored with an undervalued primary rank