User blog comment:Blappp/AoE II Tech Tree revamp/@comment-27274076-20170202051124/@comment-27198062-20170203171717

yes, the tree definitely needs a clear structure. as mentioned somewhere else, the current status is that the buildings are arranged like the in-game tech tree, from left to right and from top to bottom, which is less than ideal.

your suggestion seems decent. maybe:

-"military buildings": barracks, archery range, stable, siege workshop, castle, monatery, dock

-"defensive buildings": palisade wall/gate, stone walls/gates, towers

-"research buildings": blacksmith, university

-"economy and miscellaneous/utility buildings": the rest: town center, house, drop-off buildings, wonder,...

i would put the requirement for constructing the buuilding under the headline, before the table.