Coin Line - Merge Coin Puzzle is an engaging mobile puzzle game that combines strategic thinking with financial themes. Players are tasked with switching and stacking coins of various denominations, including US dollars, Euros, Japanese yen, Pound sterling, and Chinese Renminbi. The objective is to merge coins wisely to create higher value coins, which then disappear when five of the highest denomination are achieved. The game challenges players to act quickly and effectively, as exceeding the line limit results in game over.

In addition to its core gameplay, Coin Line features special coins that provide unique effects when eliminated, such as tripling scores or clearing obstacle coins. Players can earn coins through gameplay to purchase upgrades, enhancing their performance and extending the line limit. With support for global leaderboards, players can compete against friends and other users worldwide, adding a competitive edge to this accessible and enjoyable puzzle experience.