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Plagues of the Liber Bubonicus (version 1.0.11) (Single-player) (Updated for S&F)

The Plagues of the Liber Bubonicus adds unique mechanics to Clan Pestilens for both the Mortal Empires and Vortex campaigns. These mechanics are not a complete overhaul, but are intended to make the campaign more interesting and to add some flavour to Clan Pestilens.


The first mechanic allows the player to spend food and a new warpstone gas resource to upgrade Clan Pestilens specific units. The units affected are Plague Monks, Censer Bearers, Plagueclaw Catapults and a new unit Scourge Sentinels. Each unit type supports 3 tiers of upgrades with each tier costing more food and warpstone gas than the last.

Upgrade Costs:
Each tier 1 upgrade costs 5 food and 25 warpstone gas.
Each tier 2 upgrade costs 10 food and 50 warpstone gas.
Each tier 3 upgrade costs 15 food and 100 warpstone gas.

Once you have upgraded a unit type 3 times you can choose to unlock a related regiment of renown that has it's own plague ability. Unlocking each regiment of renown will cost 250 warpstone gas.

The second mechanic adds bonuses to your Plague Priests and Lord Skrolk as you upgrade your units in the Plague Laboratory screen. When you have invested in 6 upgrades you gain access to a new army plague ability that can be used once per battle to cause great damage and penalties to your enemies for a short period of time. When you have invested in 12 upgrades (the maximum available) then you unlock a second more powerful army plague ability.

New Units:
- Scourge Sentinels
- Plague Deacons
- Plague Martyr
- Monks of the Pox Lord (Plague Monks RoR)
- Supreme Sentinels (Scourge Sentinels RoR)
- Bearers of the Bells (Censer Bearer RoR)
- The Claw of Bubonicus (Plagueclaw Catapult RoR)

Skrolk has been given a skill that allows him to refine +3 warpstone gas per turn with an upgrade that allows him to refine +6 warpstone gas per turn. Plague Priests have a skill to refine up to +3 warpstone gas per turn. He also has three new Plague Skills that once unlocked can be assigned to Plague Claw Catapults.

Warpstone gas is also available from buildings in the Plagues building chain and the Energy building chain. You start with 50 warpstone gas.

- Requires the UI Modding Framework (used for the plague laboratory screen). Thanks to Vanishoxyact for his work on this handy framework.

SFO version can be found here.

- Ability for the AI to use the upgrades and to unlock the army abilities.

Please check out my other mods on the workshop
Medallion of Chaqua
Chieftain of the Deep Warrens
Armoury of Torgovann (Unit Upgrade for Wood Elves)
Blessings of the Old Ones (Unit Upgrade for Lizardmen)