Tech tree is the general term used to describe the gameplay progression mechanics that improve faction technologies and unlock units, bonus, buildings and upgrades for statecraft.
- Main article: Technology
Technology is a gameplay mechanic that debuted in Empire: Total War, and also appearing in Napoleon: Total War and Fall of the Samurai. Technology can be researched by factions to improve their economy, National Prestige, and military capabilities.
- Main article: Arts
Arts are a gameplay mechanic introduced in Total War: Shogun 2.
- Main article: Reforms
Reforms are a gameplay mechanic in Total War: Three Kingdoms. Reforms are analogous to Technologies, Arts and other tech tree mechanics from previous Total War titles.