Complete the Atlas, a.k.a. ブランクワールド (Blank World) is a Japanese game of world exploration. Set in Portugal in the late 15th century, King Afonso V enters into a trade agreement with Lisbon's great merchant Ferdinand Gomez. Instead of granting subsidies to explore, the agreement entitles Gomez to exclusive trade in the specialty products obtained from the voyages. Players become one of the admirals employed by Ferdinand Gomez, pioneering the wilderness, discovering unknown creatures and natural wonders, building harbors and trading posts, trading, and preaching Christianity. Players want to increase their fame and become the world's best admiral. Proving that the world is round, a new world map similar to — but not identical to — the real world will be created. Initially the game board shows a large map of the world known to Europeans in the 15th century, with all of Europe being depicted along with parts of Asia and Africa. The rest of the board is blank, and players place land tiles as they travel across the seas. In this way, they literally complete a new atlas (rather than trying to mimic the actual globe), and the game will play out differently each session. As players draw tiles and discover new lands, they also close off potential sea routes. Balancing the need to discover and the need to trade is one of the game's challenges. Building a church and propagating Christianity to a greater extent also increases a player's fame.