Developer 
Lines Shanghai Beauty is a slot game by TaDa Gaming, released in December 2019 and built around 50 paylines. The game uses a large board that can expand by one row each time four hearts are collected, up to a maximum layout of 8x5. The stated maximum win is 1000x.
The feature set includes a bonus game and respin rounds, with hearts acting as the key collecting symbol. As more hearts are gathered, the board expands, changing the number of active positions and increasing the number of available chances on each round.
This page offers the demo version, so players can play for free and practice before playing for real money. Shanghai Beauty is presented as a free slot with an expanding board mechanic, bonus features, and multiple supported languages.
