Reference for PTW units: <nowiki><ref name="Civ Fanatics PTW Units">{{cite web|title=Civ Fanatics PTW Units|url=http://www.civfanatics.com/civ3/units/ptw/|work=Fan and information site|publisher=Civ Fanatics|accessdate=22 February 2013}}</ref>
Add these units to the tables.
<ref name="Civ Fanatics Conquests Units">{{cite web|title=Civ Fanatics Conquests Units|url=http://www.civfanatics.com/civ3/units/c3c/|work=Fan and information site|publisher=Civ Fanatics|accessdate=22 February 2013}}</ref>
Settlers are arguably the most important unit in Civilization III. They are solely the fastest and most inexpensive way to increase territory, and responsible for the founding of new cities. As well as building new cities, Settlers can travel by ship across water or join a city to increase the population instantly. As their purpose is peaceful colonization, they are available from the start of the game and unable to defend themselves.[1][2]
The Worker is as vital to the growth of a small city as to an empire as a whole; they build the roads for travel and trade, farm the land for food, mine the mountains for minerals, and clear up pollution from global warming. Workers are solely responsible for improvements outside cities and, like the Settler, can travel by boat, or join a city to increase the population instantly.[1][2]
The Scout is an early reconnaissance unit with an enhanced field of vision, but no attack or defense value. They can travel on land freely, or across water on a transport ship. The Scout upgrades to the Explorer.[1][2]
The Army itself is a non-combatant, but capable of enlisting 3-4 other land-based troops and pooling their health and strengths. This makes the army a formidable force against threats and stacks of troops.
The Cruise Missile is a short-range, single-use missile, capable of launching from land at a target up to three tiles away. It can only damage one unit on a tile, rather than all, and unlike nuclear missiles the Cruise Missile causes no pollution on or around the target, but can lower the population or raze buildings in target cities. They can also be transported by ship or land in a similar way to infantry.[1][2]
The Tactical Nuke is a long-range, single-use nuclear missile, capable of launching over a large distance at a target. The Tactical Nuke is capable of damaging the eight tiles around the target and littering them with pollution. Just like their counterpart, the ICBM, they can be used to greatly reduce a target city's population from long range, but can be moved around and loaded onto Nuclear Submarines, unlike the ICBM.[1] The use of Tactical Nukes and ICBMs can exacerbate global warming, which will turn the planet's tiles into less fertile and resourceful wasteland.[2]
The ICBM is a maximum-range, single-use nuclear missile, capable of hitting any target on the planet. Just like the Tactical Nuke, the ICBM damages the eight tiles around the target also, littering them with pollution. It cannot be moved from the city it was built in.[1][2]
The Catapult is a primitive Ancient Times support unit with no attack or defense value. They, like all support units, serve as ranged support, capable of bombarding targets, including cities, where they can raze buildings and city radius improvements and kill attacking or defending units. Their lack of defence and actual attack value means they can be captured by another nation if undefended by other units. They can also be transported across water by boat.[1][2]
Non-combatant units
Missile units
Artillery units
Land Units
Naval Units
Aerial Units