Knizia tile-laying trilogy

Regarded by many as Reiner Knizia's masterpiece, Tigris & Euphrates is set in the ancient fertile crescent with players building civilizations through tile placement. Players are given four different leaders: farming, trading, religion, and government. The leaders are used to collect victory points in these same categories. However, your score at the end of the game is the number of points in your weakest category, which encourages players not to get overly specialized. Conflict arises when civilizations connect on the board, i.e., external conflicts, with only one leader of each type surviving such a conflict. Leaders can also be replaced within a civilization through internal conflicts.

Part of what is considered Reiner Knizia's tile-laying trilogy.

Part of the Knizia tile-laying trilogy, this game is set in medieval Japan. Players compete to gain the favor of three factions: samurai, peasants, and priests, represented by helmet, rice paddy, and Buddha tokens scattered about the board, which represents some of the islands of Japan. The competition is waged through the use of hexagonal tiles, each of which help curry favor of one of the three factions (or all three at once!). Players can make lightning-quick strikes with horseback ronin and ships or approach more methodically. As each token (helmets, rice paddies, and Buddhas) is surrounded, it is awarded to the player with who has gained the most favor with the corresponding group.

Gameplay continues until all the symbols of one type have been removed from the board or four symbols have been removed due to a tie for influence.

At the end of the game, players compare captured symbols of each type, competing for majorities in each of the 3 types. Ties are not uncommon and are broken based on the number of other, "non-majority" symbols each player has collected.

Each player attempts to score the most points by snaking caravan routes through the desert, trying to reach oases and blocking off sections of the desert. Many people feel that it is reminiscent of Go.

Publisher's Description
From the award-winning game designer Reiner Knizia comes a game of strategy, patience, and cool plastic camels! The desert is still treacherous, mysterious, and without mercy. But for those willing to risk the dangers of the shifting, sun-baked sands, the desert holds riches beyond compare.
In Through the Desert, two to five players each control a tribe of nomads vying for control of the desert. By establishing caravans and taking over oases, the players gain points as their tribes increase in power.
Strategy is essential in deciding how and where to build your tribe's caravans. There are multiple ways to gain points and several ways to win. Should you try to build the longest caravan? Or should you dominate the desert's oases? Don't forget to keep an eye on your opponents' caravans, or you may find your own tribe cut off from valuable water holes.

Through the Desert is part of the so called Knizia tile-laying trilogy.