COIN VOYAGE: Coin Merge Puzzle

Drop a coin onto its twin and it grows. Coins become banknotes, then bundles, and finally a gold bar. Clear a country to unlock its page in your collection.

■ Drop it, merge it, watch the money grow. COIN VOYAGE is a falling-block merge puzzle made of the world's money. Bump two identical pieces together and they become the next one up: coins turn into banknotes, banknotes into bundles, and the final piece is a gold bar. Every country stacks its money differently, so all 31 countries and regions play a little differently too.

■ Play more, and the collection opens up Clear a World Tour stage and that country's page unlocks: the full list of coin and banknote denominations, the currency symbol, the flag, and a few facts about the country and its money. Follow the pins on the world map to revisit everything you have unlocked.

■ Four ways to play

• World Tour - 31 stages. Reach the target amount before the board fills to the top. No drop limit. Up to three stars.
• Free Play - Pick any currency you have unlocked and play endlessly. Per-currency high scores.
• Daily Challenge - The same board and the same drops for everyone, every day. Play as many times as you like; your best run counts. Compete on the world ranking.
• Collection / World map - Read back everything you have gathered, any time.

■ 31 countries and regions Japanese yen / US dollar / Euro / British pound / South Korean won / Chinese yuan / Hong Kong dollar / Singapore dollar / Thai baht / Vietnamese dong / Philippine peso / Indonesian rupiah / Malaysian ringgit / Indian rupee / Australian dollar / New Zealand dollar / Canadian dollar / Mexican peso / Brazilian real / Swiss franc / Swedish krona / Norwegian krone / Danish krone / Polish zloty / Czech koruna / Turkish lira / UAE dirham / Saudi riyal / Egyptian pound / South African rand / New Taiwan dollar

And for anyone who clears all 31, there is more waiting.

■ Details we cared about

• Every piece is an illustration. No photographs are used.
• Denominations and circulation were checked against sources before being included.
• 21 languages. Country and currency names follow your device language.
• Plays offline.
• Free with ads. A single optional purchase removes every ad. There are no other in-app purchases.

Note: this is a puzzle game. It has no real money transfer, investment, or foreign exchange features.