We are given a list of four basic elements: Air, Earth, Fire, and Water. By combining them in pairs, you can discover new elements. Or you might not—only some combinations actually work. You need good intuition so you don’t waste time.

It’s a simple game. But only at first glance.

Half of the list can be crafted quickly through trial and obvious combinations with “Life,” like “Swamp + Life = Bacteria,” or with “Human”: “Human + Airplane = Pilot.”

Another part consists of easter eggs, for example: “Robot + Manga = Giant humanoid robot,” and then combining it with “Weapon” and “Life” gives you “Evangelion.”

Usually, when a new game appeared, everyone would finish it in a week and quickly forget about it. But Alchemist captured people’s minds for a long time. Even a month later, someone might come to school with a new discovery:

Combine wood and a boat to get a Wooden Ship, add Fabric to it and you get a Sailing Ship, add a Hero to the Sailing Ship and you get Columbus, Columbus + Ocean = America, America + Skyscraper = New York.