Is Whatajong the four-player mahjong game?
No. This is Mahjong Solitaire, a single-player tile-matching game. You remove pairs from a stacked board rather than draw and discard tiles against other players.
Cosy web games
Whatajong
Whatajong turns Mahjong Solitaire into a 24-round adventure. Clear matching tiles, earn enough points for the round, and choose upgrades between boards. This PCder-hosted version has browser-generated sound and no original game analytics.
Controls: Tap two matching free tiles. The tutorial explains which tiles can be selected; all game actions use on-screen controls.
PCder pick
Whatajong is a stable catalog pick.
This page is one of the games PCder is comfortable recommending first: the controls are clear, the source trail is visible, and the game fits a desktop browser session.
Regional page
Play Whatajong in the UK
This UK page keeps Whatajong on the same no download PCder shelf. Match free mahjong tiles and meet each round's point goal. Use the region switcher if you want the US, Canadian, or Australian page.
Quick answer
Whatajong online
Whatajong is a Mahjong Solitaire game with 24 rounds. Match identical tiles to clear the board, and score enough points to meet each round's goal. A tile is available when nothing covers it and at least one side is open. PCder hosts a browser build of the MIT-licensed game.
- Best for
- Play the open-source Mahjong Solitaire adventure and learn its tile rules.
- Related searches
- whatajong game, mahjong solitaire adventure, free mahjong tile game
How to play
How to play Whatajong
- Start the adventure Choose Play on the game menu. The first round begins with a short tutorial.
- Find two free tiles Look for identical tiles with no tile on top and an open left or right side.
- Clear a pair Tap or click the two tiles. They disappear, earn points, and may uncover more pairs.
- Meet the round goal Clear the board and reach the required point total. Later rounds add more tiles and upgrades.
Player guide
Free the tiles underneath
A matching pair only works when both tiles are free. Clear tiles that cover others or block their sides, then check which new pairs become available.
- A free tile has nothing above it and at least one open side.
- Watch the round's point goal as you remove pairs.
- Start with the in-game tutorial if the upgrades are unfamiliar.
Common questions
Whatajong FAQ
Why can I not select a matching tile?
A tile is blocked if another tile sits above it or both its left and right sides are covered. Clear nearby pairs to make it available.
Can I play Whatajong on a phone?
Yes. The game has a responsive layout and touch controls. Tap the tiles and use the buttons shown on screen.
Is Whatajong free and open source?
Yes. Pao Ramon publishes the game code under the MIT license. PCder hosts a browser build and links to the original GitHub repository.
Does PCder host the game or collect its statistics?
PCder hosts Whatajong under /source/whatajong/. This build removes the original PostHog integration and generates its sound in your browser instead of loading the original audio files. PCder still uses its own site analytics, as described in the privacy policy.
Can I play Whatajong on PCder from the UK?
Yes. This UK page uses the same browser build for Whatajong, with UK spelling, regional links, and source notes kept nearby. A school, college, or workplace network may still block game sites.