Terms of Use
Last updated: September 17, 2026
By using Calm Mahjong (plainsigns.com), you agree to these terms.
Use of the game
Calm Mahjong is free for personal, non-commercial use. Please don't copy the game, interfere with how it works, or use automated tools to play it or to click on ads.
Ads
The game may show ads. We are not responsible for the content of third-party ads or the websites they link to.
For fun, not medical advice
Calm Mahjong is a game for enjoyment. We make no medical or health claims about it.
No warranty
The game is provided "as is". We try to keep it working well, but we can't promise it will always be available or free of errors. Saved progress lives on your device and may be lost if your browser data is cleared.
Limitation of liability
To the extent allowed by law, we are not liable for any indirect or incidental damages arising from your use of the game.
Changes
We may update these terms. The date at the top shows the latest version.