🏗️ Base Building
Main Hall upgrade paths, building priorities, and how to grow your city without stalling.
Your city is an engine, and the classic new-player mistake is redlining one part of it. Main Hall level gates everything, so it feels like the only thing worth upgrading — but a Main Hall pushed ahead of your Camps, Hospital, and Academy produces a city that looks impressive on the leaderboard and folds the first time someone scouts it.
The useful mental model is pacing: Main Hall when you can afford to, and between those pushes the buildings that compound. Camps raise your troop ceiling, the Hospital decides how much of your army survives a bad fight, the Academy compounds across every future upgrade, and resource buildings quietly fund all of it. Defense towers and walls, meanwhile, are the trap almost everyone falls into at least once.
These guides cover upgrade priorities, city level requirements and their uranium costs, hospital capacity and why overflow kills armies outright, the Biochemical Lab's zombie troops, and the Elite Equipment Facility's odds — read that last one before you feed it materials.
7 guides in Base Building
Age of Origins Prosperity Guide: Houses, Refugees & the Buff Nobody Builds For
Prosperity in Age of Origins pays building speed, gather speed, attack and HP — and it runs on Houses and rescued refugees most players never deliberately farm.
Age of Origins Mysterious Island: Decorations, Duplicates & Real Stat Bonuses
The Mysterious Island is a permanent stat system, not a retired event: how decorations level, why duplicates don't stack, and what the Garage refunds.
Age of Origins Hospital Guide: Why Overflow Kills Armies
Hospital mechanics decoded: defenders wound instead of dying only while capacity lasts, Medic Stations first, the SOS skill, and healing before every event.
Age of Origins Elite Equipment Facility: Gamble Smart, Skip Green
The Elite Equipment Facility explained: the 50% gamble rules, deconstruction, Power Ore, the six extension slots, and the build order that wastes nothing.
Age of Origins City Level Requirements: Main Hall Upgrades & Uranium
How Main Hall upgrade requirements work in Age of Origins: the prerequisite pattern, uranium from level 31, the Core Mining Station, and planning to the cap.
Age of Origins Building Guide: Upgrade Priorities That Don't Stall
What to build first in Age of Origins: Main Hall pacing, Camps, Hospital, Academy, resource buildings, and the upgrade order for steady growth.
Age of Origins Biochemical Lab Guide: Zombie Troops From Your Dead
The Biochemical Lab explained: the Lucy-first healing strategy, farming biochemical material from dead troops, and turning the horde into your own army.