In strategy games, a technology, tech, or research tree is a hierarchical visual representation of the possible sequences of upgrades a player can unlock (most typically representing the research progress of a given faction). Because these trees are technically directed and acyclic, they can more accurately be described as a directed acyclic graph of technologies.
In strategy games, a technology, tech, or research tree is a hierarchical visual representation of the possible sequences of upgrades a player can unlock (most typically representing the research progress of a given faction). Because these trees are technically directed and acyclic, they can more accurately be described as a directed acyclic graph of technologies.
Source: Wikipedia "Technology tree" · CC BY-SA 4.0
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