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Upgrading Units.

Discussion in 'Civ4 - General Discussions' started by Koszmar, Jan 4, 2013.

  1. Koszmar

    Koszmar Chieftain

    Apr 30, 2012
    When can you start to upgrade units?

    I wanted to upgrade my archers to longbowmen but it there was nothing to click on. After a few more techs I was suddenly allowed to do it.

    Is there a tech that must be advanced first?

  2. traius

    traius His own worst enemy

    May 27, 2012
    As soon as you have the prerequisite tech, and are in your own borders (and have any resource needed!) and have the cash to pay for it, you should be able to upgrade your antiquated units. General tip: Don't upgrade everything! Only maybe archers to longbows in border cities, or macemen to rifles right before a big attack, etc. If you aren't going to see use from the upgrade, don't waste your money!
    So yes, there is a requisite tech, for longbows specifically it is feudalism, but the requisite tech is different for each unit, pretty much. Note that units can only upgrade to the next of it's "type," and even then there are exceptions. Archers to longbowmen or crossbowmen, axes and swords to maces. As for an example of an exception: Horse Archers can be upgraded to Knights, and Chariots to Knights, but chariots cannot be upgraded to horse archers.
  3. tdy99

    tdy99 Prince

    Jul 17, 2010
    The Capital of the Confederacy
    What the above poster said about the conditions necessary to upgrade.

    My personal rule of thumb is I never upgrade anything that I can just build. It's not worth it. I only upgrade units that are advanced enough or have certain promotions that I can't outright build them.
  4. UnforcedError

    UnforcedError Settler

    May 1, 2012
    Budapest, Hungary
    Depends on the level you play at. At the higher levels pre-building cheaper units and doing a trade mission to finance all the upgrades can get you a relatively large army pretty fast. Up until mid level this may not be necessary as the time window to effectively utilize your fancy new units is fairly big.
  5. Mec AntiKythera

    Mec AntiKythera King

    Sep 24, 2010
    That is very true, the pre-build units + Great Merchant trade mission + unit upgrade = formidable attack force formula can prove to be quite effective. I think it must be one of the best uses of a Great Person there is. It is a bit like using a Great Engineer to finish a wonder but the Engineer is a Merchant and the wonder is a large and advanced army, they both give a very satisfying feeling.

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