DEVILS SHANGHAI
Support & contact
Last updated: October 25, 2026
Find help with the game below. Verified October 25, 2026: Android version 1.1.0 is available on Google Play. The iOS version is not publicly available yet. Mahjong and Shanghai are included in the same app.
A tile will not disappear
Both tiles must have no overlapping tile above and an open side to the left or right. Match identical faces, any two flowers, or any two seasons. A flower cannot be paired with a season tile.
I am stuck
Use Hint to find a currently available pair. If there is none, try Undo, use a shuffle or pair-removal item, or restart the stage for free. There is no time limit.
Saving or technical problems
Check your device’s available storage and note the symptoms and app version. Deleting or reinstalling the App may remove your progress and items; contact us first if you want help with recovery.
The App has no cloud-save or device-transfer feature. We cannot restore game data from our servers.
Ads and rewards
Android includes ads: a full-screen ad after each completed Mahjong match, and when leaving the results after every four main-stage Shanghai clears. Repeated clears count; study puzzles do not. Optional rewarded ads on the Mahjong home screen grant one starting-hand assistance ticket for free matches when the reward condition is met. Ads are skipped when offline or unavailable. The iOS version does not include ads. There are no in-app purchases.
Contact us
Operator: RT Information System.
Include “悪魔の上海” or “Devils Shanghai” in your subject and provide the following where possible. There are no purchases in the current version, so payment details and receipts are not needed.
- Device model, iOS / Android version, and app version
- Stage number and steps leading to the issue
- What you expected and what actually happened
- A screenshot if useful, with notifications and personal details hidden