Third Upgrade Mod v 3.5 update with new undead creatures

Author: Liso1 October 29, 2026 0 Comments

Third Upgrade Mod contain: +125 New Creatures. +90 New Artifacts. +Various decorative objects that are generated in RMG +45 new Dwellings. +35 new Creature Banks. +New adventure objects.

Incompatible mods: JS – New Artifacts.

Third Upgrade Mod v 3.5 update changelog:

• Updated New Town plugin and Amethyst: Fixed numerous other bugs and improved several aspects.
• Improved Silos Upgrade feature.
• Fixed the “alternative upgrades” option not working; it was disabled by default when TUM was enabled. (Thanks to Archer!).
• The wog options to enable Fourth Upgrades and 8th Dwellings is working again!
• Fixed Lord of Tartarus/Archfiends take overflow damage when they are shot.
• Now Fallen Angel and Angel of the Death can be transformed into Skeleton Angel in Skeleton Transformer.
• Pandora Boxes feature have been removed as part of a restructuring and to make room for other mods that can do something similar.
• Added “JS – new artifacts” to the list of incompatible mods.

The following bug fixes and improvements were made by SadnessPower. (Thanks a lot for your help!):

• Optimized and fixed countless issues related to the growth of 8th monsters in cities.
• Rewritten growth modifications in a way which modifies vanilla function instead of replacing it entirely.
• Other growth-modification mods to be compatible
• Better stability and no unexpected behaviour since vanilla tested code handles the core of the behaviour
• Added configuration for town-specific boats
• Fixed outline glowing for building > 43 and/or towns > 9
• Fixed crash while generating a new map for some specific templates
• Fixed arrow towers doing less damage with Cathedral instead of doing more
• Fixed WOG golden arrow tower being mistakenly disabled
• Fixed required building list showing all required buildings, not only the direct dependencies.
• Fixed: The Grail no longer allows the recruitment of special units.
• Fixed an issue in the map editor regarding dwellings composed of 4 creatures; they can now be selected and placed on the map without any problems!

The following bugs were fixed by PerryR. (Many thanks, mate!):

• Fixed an issue where units in the first slot would act first in combat!
• Horn of the Abyss (artifact) — syntax error: Added the missing colon in !!VR(isAlive:y):S(flags) so the living-creature flag can be evaluated correctly. Horn of the Abyss — Fangarm summon calculation: Changed BM:P to BM:H when reading the defeated creature’s HP. The previous code used its battlefield hex position as its HP, making the number of summoned Fangarms depend on where the victim died.
• Ring of Oblivion (artifact) — corpse removal: Changed the creature-count condition from <0 to <=0. Normally defeated stacks have zero creatures, so the previous condition skipped their corpses.
• Ring of Elements (artifact) — effect carrying over between battles: Added a guarded restoration of the original summoning restriction after combat and cleared the ring’s temporary state. Previously, the modified value could be captured as the “original” value in the next battle, allowing the effect to persist without the ring.
• Creature specialties — fourth-upgrade syntax error: Added the missing colon before C in the conditional UN command. This repairs the intended creature-ID substitution used when applying specialty bonuses to fourth upgrades.

Creature Overhaul

All creatures in TUM have undergone a rebalancing of their stats and abilities (innate traits and stack experience).

• Seraphim: They are now called “Cherubim” to respect their categorical form in mythology.
• Caesar Griffin: New graphic. Removed innate “Fearless” and added “No Enemy Retaliation.
• Dragonslayer: Now deals much more damage to Dragons and takes less damage of them.
• Centaur General: They are now called “Centaurs Commander”, and with a new graphic.
• Berserker Dwarves: They are now called ‘Battle Veteran Dwarf”, and with a new graphic.
• Pure Diamond Dragon: They are now called “Brilliant Diamond Dragon”.
• Marble Gargoyle: They are now called “Meteorite Gargoyle”, and with a new graphic.
• Supreme Arch Mage: They are now called “Battle Arch Mage”, and with a new graphic.
• Skeleton Knight: Removed Double Attack and replaced it with Counterstrike Fury and 2 Retaliations.
• Guardians of Zeus: They are now called “Masters of Thunder”.
• Spectral Behemonth: They are now called “Ancestral Behemonth” can be resurrected now.
• Monstruous Eyes: They are now called “Lurkers”.
• Gnoll Shaman: The concept has been completely redesigned. They now possess double retaliation in a single attack.
• Chaotic Dragon Fly: Now they are simply called “Chaotic Fly”, and with a new graphic.
• Lava Basilisks: They are now called “Insatiable Basilisks”, with new visuals and a redesign of its abilities.
• Gorynych y Tiamat are now cheaper to recruit.

Faction-specific level 8 creatures and their upgrades have had their stats slightly nerfed, but they are now cheaper to recruit.

New creatures and upgrades

• Veteran: Upgrade of Man at Arms.
• Pharaoh Mummy: Upgrade of Mummy.
• Skeleton Ranger: Upgrade of Skeleton Archer.
• General Skeleton: New undead unit with dwelling. You can also get it in Skeleton Transformer by transforming: Swordsman, Crusader, Inquisitor, Dragonslayer, Templars, Paladins, Fire Paladin, Ice Knight, Thunder Warrior, and Swordmaster.
• Holy Dragon: A beast that aggressively purges the undead.

Almost all of the graphical improvements are the work of the user Yogdush—full credit goes to him, as well as to Toriko. They have both been included in the mod’s main credits, with Yogdush recognized as a featured creature designer.