Advance (Civ3)

Civilization advances or technologies are researched using the science generated by a civilization. They make new city improvements, wonders, units and later technologies available to a civilization once unlocked by that civilization.
== List of civilization advances ==
== Technology costs ==
\left\lfloor\frac{\mathtt{worldSizeModifier}}{10\max{\left(\mathtt{costFactor},\ 10\right)}}\ \left\lfloor10\mathtt{baseCost}\left(1-\frac{\mathtt{numMetCivsWithTech}}{\left\lfloor1.75\mathtt{numRemainingCivs}\right\rfloor}\right)\right\rfloor\right\rfloorhttps://forums.civfanatics.com/threads/technology-list-and-cost.193586/#post-4807833
Variable 	Explanation
\mathtt{worldSizeModifier} 	Makes tech more expensive with a larger World Size.
\mathtt{costFactor} 	Makes tech cheaper for AIs as the difficulty level is set higher.
\mathtt{baseCost} 	Different techs cost different amounts.
\mathtt{numMetCivsWithTech}	The more civs that have been met who have already discovered a tech, the cheaper it is.
\mathtt{numRemainingCivs} 	The fewer the number of civs that remain in the game, the cheaper tech is.
== Micro-optimization ==
Since research spent in excess of a technology's cost is not carried over to the next technology, the player can generate a small amount of extra gold (or other yield) by reducing scientific spending and reassigning scientists as a technology nears completion, often with zero cost in terms of how soon the technology is fully researched.
== Free technology ==
Upon completion of certain wonders, the player will receive a number of free technologies. In order to choose which technologies are free, as well as to save science/gold, it is suggested that the player -
* During construction of the wonder...
** switch research to technologies which -
*** the player does not wish to receive free;
*** can be fully researched before the wonder is constructed.
**** If no such technology exists, reduce scientific spending to zero and assign scientists to other jobs.
** When there is one turn to go till the wonder is completed...
*** switch research to a technology which the player wishes to receive free;
*** reduce scientific spending to zero and assign scientists to other jobs.
* When the wonder is completed...
** select free technologies;
** once there are no more free technologies available, reset research, science spending and specialists to suit normal gameplay.
One rare opportunity provided by free technology in scenario play is to research branches of the tech tree not normally available to the civilization: sometimes, the tech tree is designed with expensive technologies provided free to particular civilizations such that they can access the technologies downstream while other civilizations will find the research for that initial technology prohibitively expensive. Using free technologies to acquire the initial technology can lead to interesting gameplay (e.g., France having Muslim-branch technologies in The Middle Ages scenario).
== References ==
 
Category:Game concepts (Civ3)