Third Upgrades mod update v2.12.6 – new effect of Lightning rod artifact

Third Upgrades mod update v2.12.6 Changelog:

  • Added AI value for new artifacts, now artifacts are more realistic for AI to use.
  • Added Skeleton transformer adventure object.
  • Added Colosseum of the Magi adventure object. (Thanks to Archer)
  • Added effects to Ring of Oblivion, Charm of Eclipse, Seal of Sunset and Plate of Dying Light. (Thanks to Kongsuni)
  • Changed description and effect of Lightning Rod artifact.
  • Balanced Gnoll Shaman in stack experience, now have curse abilities.
  • Fixed Crossbowman in adventure map.
  • Fixed Mithril Golem immunity to damage spells.
  • Fixed description from Mirage Dragon and Mirror Dragon.
  • Fixed Ghoul battle animation.
Third Upgrade Mod
works with Heroes 3 ERA Launcher
Download Heroes 3 Complete from GOG.COM


  1. toxibarge

    there’s a problem : i can’t download the latest version of the TU mod : when i click on the “download” button, i’m redirected to a goodle drive , but there’s no overview and it’s said that the file is in the owner’s bin… does it exist an alternative way to dl ????

    1. Liso1 (Post author)

      link is fixed, thank you

      1. toxibarge

        thanks !!!! 🙂

  2. John

    No file to download((((

    1. Liso1 (Post author)

      Hi, use alternative free download from, it works without problems.

  3. John


  4. John

    Unfortunately, frequent crashes in battles(((

    1. Liso1 (Post author)

      What other modifications do you have installed? For me, the game works without problems in combination Era 3 Launcher + Third Upgrades mod. No crashes.

  5. Mr.Bruni

    Hello there!

    I installed Windows 11 two days ago. Since then I’m unable to use the mod [Gameplay] Third Upgrade Mod v2.13.1 [Amethyst Edition].

    Do you also face issues with HoMM3 ERA 3.9.1 on Windows 11?

    Thanks for your feedback!


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