Chemistry
University - Imperial AgeEvolution
Chemistry
Imperial AgeTechnology Effect
"+1 Attack for all ranged units, enables gunpowder"
Coach's Tip
Chemistry gives +1 attack to all ranged units including archers, Cavalry Archers, ships, and siege. It also enables gunpowder units like Hand Cannoneers and Bombard Cannons.
Strategic Analysis
Strategic Identity
Chemistry gives +1 attack to all ranged units including archers, Cavalry Archers, ships, and siege. It also enables gunpowder units like Hand Cannoneers and Bombard Cannons.
When to Research
High Priority
Research Chemistry as soon as you have the resources and are using university units.
Combat Impact
+1 Attack for all ranged units, enables gunpowder
Affected Units
This technology improves 14 units.
Civilization Access
* 56 civilizations have access to this technology.
Prepare your next matchup
Choose both civilizations for a game plan, key threats and an army composition.
Other Technologies to Explore
AoE Coach analysis
Context & meta
Chemistry is the University Imperial Age technology that gives +1 attack to all ranged units — archers, Cavalry Archers, ships and siege — and unlocks gunpowder units (Hand Cannoneers, Bombard Cannons, Cannon Galleons). Costing 300 food / 200 gold, it is one of the most impactful single research decisions in the late game. The +1 attack is deceptively large: it stacks on top of every other upgrade and applies to your entire ranged army at once. For any archer or gunpowder civilization, Chemistry is a non-negotiable Imperial Age purchase that swings whole battle lines.
History & balance
Chemistry has always been the gateway to gunpowder, and its dual role (a flat ranged-attack buff plus a gunpowder prerequisite) makes it one of the most universally researched Imperial techs. The Definitive Edition kept its cost and effect stable because it is well-balanced — expensive enough to be a real commitment, valuable enough to be worth it for ranged civs. A few civilizations lack Chemistry or gunpowder, a deliberate handicap that shapes their late-game options and pushes them toward cavalry or trash-unit endgames.
In pro play
In long Imperial Age games, Chemistry is a priority University research for any ranged army — the +1 attack on massed Arbalests or Cavalry Archers translates into noticeably faster kills across the whole army. It is mandatory before transitioning into Hand Cannoneers or Bombard Cannons, which is why pros time Chemistry around their gunpowder switch. Civilizations with strong gunpowder bonuses (Turks, Portuguese, Spanish) rush Chemistry to unlock their power units. Casters treat the Chemistry timing as a marker for when a player's ranged army takes its Imperial power spike.
How to counter it
Chemistry is a tech, not a unit, so it cannot be countered directly — but you can race it. If you know your opponent is investing 300F/200G into Chemistry, you have a window where your own upgrades may be ahead; press it. The broader answer is the same as countering the ranged army it empowers: Skirmishers and Mangonels against archers, Light Cavalry to dive gunpowder and siege, and Bombard Cannons or Trebuchets to outrange static lines. Denying gold during the Imperial transition delays Chemistry and the gunpowder units that depend on it.