Main Page | See live article | Alphabetical index A Technology tree or Tech tree is a hierarchy for opening new aspects and parts to a game, often used in strategy computer games. It is used as an abstraction of technology and science. The player would "reseach" a "technology", investing some kind of currency. In a certain amount of time, it would be "discovered," and the player would have access to a new unit or unit upgrade, for example. It may (but not always,) lead to several others technologies, which may lead more techologies, giving the hierarchy. Note that is does not follow a linear path. When graphically reproduced, it looks like a tree thus giving its name. Games that use a Technology tree: Turn-based game Civilization, Civilization II, Civilization 3 Alpha Centauri computer game Real-time strategy Warcraft Starcraft Age of Empires Please add more games This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.